tbuckley/cabot-search huggingface dataset:
Determinants of Bone and Blood Lead Levels among Teenagers Living in Urban Areas with High Lead Exposure
Authors: Paulina Farias, Howard Hu, Elizabeth Rubenstein, Fernando Meneses-Gonzalez, Eugenia Fishbein, Eduardo Palazuelos, Antonio Aro, Mauricio Hernandez-Avila
Journal: Environmental Health Perspectives (1998)

Depending on process conditions, polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) may be generated as low-level byproducts of chlorophenol and chlorophenoxy herbicides manufacture. A stratified random sample of 20 active employees from a cohort of phenoxy herbicide workers was selected in 1995 for determining PCDD and PCDF congeners in blood lipids to assess the extent of past PCDD and PCDF exposure in this cohort and whether that exposure might explain site-specific cancer findings in the total cohort. This cohort is included in the IARC International Registry of Persons Exposed to Phenoxyacid Herbicides and Their Contaminants. For the 19 persons who participated, median PCDD and PCDF concentrations were comparable to background concentrations in the general population. Median levels of 2,3,7,8-tetrachlorodibenzo-p-dioxin, the sum of hexachlorodibenzo-p-dioxin, pentachlorodibenzofurans, and two dioxin toxicity equivalents values were statistically higher in 7 employees assigned to synthesis operations than for 12 employees assigned to other operations. However, the PCDD and PCDF concentrations were low relative to those seen in other dioxin-exposed cohorts. We conclude that PCDD and PCDF exposures of cohort members are unlikely to explain the elevated standardized mortality ratios observed in this cohort for several cancer sites.
Abstract 2477: Ventricular Synchrony can be Preserved by Right Ventricular Septal Pacing Compared with Right Ventricular Apical Pacing: Evaluation by Ultrasound Speckle-Tracking Imaging and Tissue Doppler Imaging
Authors: Chisato Izumi, Shuichi Takahashi, Sumiyo Hashiwada, Hidetaka Hayashi, Jiro Sakamoto, Takahumi Higuchi, Kazuyasu Yoshitani, Makoto Miyake, Makoto Motooka, Kazuaki Kaitani, Toshiaki Izumi, Hiromitsu Gen, Yoshihisa Nakagawa
Journal: Circulation (2007)

Objectives: Traditional right ventricular apical (RVA) pacing may induce ventricular dyssynchrony in patients with normal left ventricular (LV) function. The purpose of this study is to elucidate the influence of pacing sites on the ventricular dyssynchrony, using ultrasound speckle-tracking imaging and tissue Doppler imaging. Methods: We investigated 24 patients with normal LV function who underwent DDD pacemaker implantation. Right ventricular lead position was apex in 18 patients and septum in 6 patients. Radial strain and circumferential strain were measured using ultrasound speckle-tracking imaging (Vivid 7, GE) from short axis view at papillary muscle level. Myocardial velocity was measured by tissue Doppler imaging in mid-segments from apical 4-chamber view. The difference of time to peak radial strain, circumferential strain, and systolic myocardial velocity between septal and lateral wall were compared between during patients’ intrinsic rhythm and pacing rhythm, and between patients with RVA pacing and right ventricular septal (RVS) pacing. Results: In 18 patients with RVA pacing, difference of time to peak circumferential strain and systolic myocardial velocity between septal and lateral wall were larger during pacing rhythm than during patients’ intrinsic rhythm (circumferential strain: 118±57 vs 59±48msec, p&lt;0.01, myocardial velocity: 75±47 vs 52±40msec, p&lt;0.05). On the other hand, in 6 patients with RVS pacing, difference of time to peak radial strain, circumferential strain and systolic myocardial velocity during pacing rhythm were the same as those during patients’ intrinsic rhythm. Difference of time to peak circumferential strain between septal and lateral wall was smaller in patients with RVS pacing than patients with RVA pacing (37±50 vs 118±57msec, p&lt;0.005). Conclusions: Ventricular synchrony can be preserved by RVS pacing compared with RVA pacing.
From the Alcohol, Drug Abuse, and Mental Health Administration
Authors: F. K. Goodwin
Journal: JAMA (1992)

Our website uses cookies to enhance your experience. By continuing to use our site, or clicking "Continue," you are agreeing to our Cookie Policy | Continue JAMA HomeNew OnlineCurrent IssueFor Authors Podcasts Clinical Reviews Editors' Summary Medical News Author Interviews More Publications JAMA JAMA Network Open JAMA Cardiology JAMA Dermatology JAMA Health Forum JAMA Internal Medicine JAMA Neurology JAMA Oncology JAMA Ophthalmology JAMA Otolaryngology–Head & Neck Surgery JAMA Pediatrics JAMA Psychiatry JAMA Surgery Archives of Neurology & Psychiatry (1919-1959) JN Learning / CMESubscribeJobsInstitutions / LibrariansReprints & Permissions Terms of Use | Privacy Policy | Accessibility Statement 2023 American Medical Association. All Rights Reserved Search All JAMA JAMA Network Open JAMA Cardiology JAMA Dermatology JAMA Forum Archive JAMA Health Forum JAMA Internal Medicine JAMA Neurology JAMA Oncology JAMA Ophthalmology JAMA Otolaryngology–Head & Neck Surgery JAMA Pediatrics JAMA Psychiatry JAMA Surgery Archives of Neurology & Psychiatry Input Search Term Sign In Individual Sign In Sign inCreate an Account Access through your institution Sign In Purchase Options: Buy this article Rent this article Subscribe to the JAMA journal
THE ETIOLOGY OF CHOREA.
Journal: JAMA (1906)

Our website uses cookies to enhance your experience. By continuing to use our site, or clicking "Continue," you are agreeing to our Cookie Policy | Continue JAMA HomeNew OnlineCurrent IssueFor Authors Publications JAMA JAMA Network Open JAMA Cardiology JAMA Dermatology JAMA Health Forum JAMA Internal Medicine JAMA Neurology JAMA Oncology JAMA Ophthalmology JAMA Otolaryngology–Head & Neck Surgery JAMA Pediatrics JAMA Psychiatry JAMA Surgery Archives of Neurology & Psychiatry (1919-1959) Podcasts Clinical Reviews Editors' Summary Medical News Author Interviews More JN Learning / CMESubscribeJobsInstitutions / LibrariansReprints & Permissions Terms of Use | Privacy Policy | Accessibility Statement 2023 American Medical Association. All Rights Reserved Search All JAMA JAMA Network Open JAMA Cardiology JAMA Dermatology JAMA Forum Archive JAMA Health Forum JAMA Internal Medicine JAMA Neurology JAMA Oncology JAMA Ophthalmology JAMA Otolaryngology–Head & Neck Surgery JAMA Pediatrics JAMA Psychiatry JAMA Surgery Archives of Neurology & Psychiatry Input Search Term Sign In Individual Sign In Sign inCreate an Account Access through your institution Sign In Purchase Options: Buy this article Rent this article Subscribe to the JAMA journal
SportsMedUpdate
Authors: Martin P Schwellnus
Journal: British Journal of Sports Medicine (2010)

1. Alonso JM, 2. Junge A, 3. Renstrom P, 4. et al . Clin J Sport Med 2009;19:26–32. [OpenUrl][1][CrossRef][2][PubMed][3][Web of Science][4] ### Background There are reports of a high annual incidence of injuries in athletics, but this has not been studied well ### Research question/s What is the incidence and nature of all sports injuries that were incurred in competitions and/or training during the 2007 World Athletics Championships? ### Methodology Subjects : 1660/1980 (84%) of registered athletes (various disciplines) participating in the 11th IAAF World Athletics Championships Experimental procedure : Previously validated injury report forms (n=333) were completed by team physicians and physiotherapists of 49 teams during the event. 192 injuries (defined as "all musculoskeletal injuries newly occurred during competition or training regardless of the consequences with respect to absence from competition or training") were reported. All injuries and time-loss injuries were reported Measures of outcome : Incidence of injury (per 1000 athletes), anatomical location, type, injuries in different disciplines ### Main finding/s Incidence of injuries: 97/1000 registered athletes, with 72.4/1000 during competition Most injuries were overuse (44%) and most occurred in the lower limbs (80%) – the most common injury was a thigh strain (15%) Injuries by discipline: This varied and the highest risk of a timeloss injury was heptathlon, women's 10,000 m, women's 3000 m steeplechase, … [1]: {openurl}?query=rft.jtitle%253DClinical%2Bjournal%2Bof%2Bsport%2Bmedicine%2B%253A%2B%2Bofficial%2Bjournal%2Bof%2Bthe%2BCanadian%2BAcademy%2Bof%2BSport%2BMedicine%26rft.stitle%253DClin%2BJ%2BSport%2BMed%26rft.aulast%253DAlonso%26rft.auinit1%253DJ.%2BM.%26rft.volume%253D19%26rft.issue%253D1%26rft.spage%253D26%26rft.epage%253D32%26rft.atitle%253DSports%2Binjuries%2Bsurveillance%2Bduring%2Bthe%2B2007%2BIAAF%2BWorld%2BAthletics%2BChampionships.%26rft_id%253Dinfo%253Adoi%252F10.1097%252FJSM.0b013e318191c8e7%26rft_id%253Dinfo%253Apmid%252F19124980%26rft.genre%253Darticle%26rft_val_fmt%253Dinfo%253Aofi%252Ffmt%253Akev%253Amtx%253Ajournal%26ctx_ver%253DZ39.88-2004%26url_ver%253DZ39.88-2004%26url_ctx_fmt%253Dinfo%253Aofi%252Ffmt%253Akev%253Amtx%253Actx [2]: /lookup/external-ref?access_num=10.1097/JSM.0b013e318191c8e7&link_type=DOI [3]: /lookup/external-ref?access_num=19124980&link_type=MED&atom=%2Fbjsports%2F44%2F2%2F155.atom [4]: /lookup/external-ref?access_num=000262384400006&link_type=ISI
Let's work together! A call to America's physicians and the public we serve
Authors: J. E. Davis
Journal: JAMA (1988)

Mr Speaker, officers and members of the Board of Trustees, delegates and alternates to the House of Delegates, presidents of state associations, auxiliary officials, and distinguished guests: I feel privileged to join the ranks of 142 predecessors who have had the singular opportunity to serve as President of the American Medical Association. As I stand here—humbly, respectfully, and enthusiastically accepting the challenges of this office—I am honored to be in the presence of this audience, the leaders of American medicine. This opportunity is especially meaningful to me because it comes at a time when our profession is at a zenith of unprecedented accomplishments. Working with the people of this country, we have achieved so much. Life expectancy continues to lengthen. The quality of life continues to improve. And the public now exhibits a widespread and impressive commitment to self-care and the prevention of illness. The advances of many decades are
Evaluation of a New Oral Diuretic Agent
Journal: JAMA (1967)

Our website uses cookies to enhance your experience. By continuing to use our site, or clicking "Continue," you are agreeing to our Cookie Policy | Continue JAMA HomeNew OnlineCurrent IssueFor Authors Publications JAMA JAMA Network Open JAMA Cardiology JAMA Dermatology JAMA Health Forum JAMA Internal Medicine JAMA Neurology JAMA Oncology JAMA Ophthalmology JAMA Otolaryngology–Head & Neck Surgery JAMA Pediatrics JAMA Psychiatry JAMA Surgery Archives of Neurology & Psychiatry (1919-1959) Podcasts Clinical Reviews Editors' Summary Medical News Author Interviews More JN Learning / CMESubscribeJobsInstitutions / LibrariansReprints & Permissions Terms of Use | Privacy Policy | Accessibility Statement 2023 American Medical Association. All Rights Reserved Search All JAMA JAMA Network Open JAMA Cardiology JAMA Dermatology JAMA Forum Archive JAMA Health Forum JAMA Internal Medicine JAMA Neurology JAMA Oncology JAMA Ophthalmology JAMA Otolaryngology–Head & Neck Surgery JAMA Pediatrics JAMA Psychiatry JAMA Surgery Archives of Neurology & Psychiatry Input Search Term Sign In Individual Sign In Sign inCreate an Account Access through your institution Sign In Purchase Options: Buy this article Rent this article Subscribe to the JAMA journal
Minerva Medica, Turin
Journal: JAMA (1965)

Our website uses cookies to enhance your experience. By continuing to use our site, or clicking "Continue," you are agreeing to our Cookie Policy | Continue JAMA HomeNew OnlineCurrent IssueFor Authors Publications JAMA JAMA Network Open JAMA Cardiology JAMA Dermatology JAMA Health Forum JAMA Internal Medicine JAMA Neurology JAMA Oncology JAMA Ophthalmology JAMA Otolaryngology–Head & Neck Surgery JAMA Pediatrics JAMA Psychiatry JAMA Surgery Archives of Neurology & Psychiatry (1919-1959) Podcasts Clinical Reviews Editors' Summary Medical News Author Interviews More JN Learning / CMESubscribeJobsInstitutions / LibrariansReprints & Permissions Terms of Use | Privacy Policy | Accessibility Statement 2023 American Medical Association. All Rights Reserved Search All JAMA JAMA Network Open JAMA Cardiology JAMA Dermatology JAMA Forum Archive JAMA Health Forum JAMA Internal Medicine JAMA Neurology JAMA Oncology JAMA Ophthalmology JAMA Otolaryngology–Head & Neck Surgery JAMA Pediatrics JAMA Psychiatry JAMA Surgery Archives of Neurology & Psychiatry Input Search Term Sign In Individual Sign In Sign inCreate an Account Access through your institution Sign In Purchase Options: Buy this article Rent this article Subscribe to the JAMA journal
RESPONSE: Re: Systematic Aortic and Pelvic Lymphadenectomy Versus Resection of Bulky Nodes in Optimally Debulked Advanced Ovarian Cancer: A Randomized Clinical Trial
Authors: Pierluigi Benedetti Panici, Roberto Angioli, Natalina Manci, Fabio Landoni, Angelo Maggioni, Neville Hacker, Tiziana Dell'Anna, Roldano Fossati
Journal: JNCI Journal of the National Cancer Institute (2005)
ON THE INFLUENCE OF SHELL-FISH IN THE SPREAD OF CHOLERA.
Journal: JAMA (1895)

Our website uses cookies to enhance your experience. By continuing to use our site, or clicking "Continue," you are agreeing to our Cookie Policy | Continue JAMA HomeNew OnlineCurrent IssueFor Authors Publications JAMA JAMA Network Open JAMA Cardiology JAMA Dermatology JAMA Health Forum JAMA Internal Medicine JAMA Neurology JAMA Oncology JAMA Ophthalmology JAMA Otolaryngology–Head & Neck Surgery JAMA Pediatrics JAMA Psychiatry JAMA Surgery Archives of Neurology & Psychiatry (1919-1959) Podcasts Clinical Reviews Editors' Summary Medical News Author Interviews More JN Learning / CMESubscribeJobsInstitutions / LibrariansReprints & Permissions Terms of Use | Privacy Policy | Accessibility Statement 2023 American Medical Association. All Rights Reserved Search All JAMA JAMA Network Open JAMA Cardiology JAMA Dermatology JAMA Forum Archive JAMA Health Forum JAMA Internal Medicine JAMA Neurology JAMA Oncology JAMA Ophthalmology JAMA Otolaryngology–Head & Neck Surgery JAMA Pediatrics JAMA Psychiatry JAMA Surgery Archives of Neurology & Psychiatry Input Search Term Sign In Individual Sign In Sign inCreate an Account Access through your institution Sign In Purchase Options: Buy this article Rent this article Subscribe to the JAMA journal
Medical Licensure Statistics for 1960
Journal: JAMA (1961)

Our website uses cookies to enhance your experience. By continuing to use our site, or clicking "Continue," you are agreeing to our Cookie Policy | Continue JAMA HomeNew OnlineCurrent IssueFor Authors Publications JAMA JAMA Network Open JAMA Cardiology JAMA Dermatology JAMA Health Forum JAMA Internal Medicine JAMA Neurology JAMA Oncology JAMA Ophthalmology JAMA Otolaryngology–Head & Neck Surgery JAMA Pediatrics JAMA Psychiatry JAMA Surgery Archives of Neurology & Psychiatry (1919-1959) Podcasts Clinical Reviews Editors' Summary Medical News Author Interviews More JN Learning / CMESubscribeJobsInstitutions / LibrariansReprints & Permissions Terms of Use | Privacy Policy | Accessibility Statement 2023 American Medical Association. All Rights Reserved Search All JAMA JAMA Network Open JAMA Cardiology JAMA Dermatology JAMA Forum Archive JAMA Health Forum JAMA Internal Medicine JAMA Neurology JAMA Oncology JAMA Ophthalmology JAMA Otolaryngology–Head & Neck Surgery JAMA Pediatrics JAMA Psychiatry JAMA Surgery Archives of Neurology & Psychiatry Input Search Term Sign In Individual Sign In Sign inCreate an Account Access through your institution Sign In Purchase Options: Buy this article Rent this article Subscribe to the JAMA journal
American Haiku
Authors: KEHL MARKLEY
Journal: Annals of Internal Medicine (1980)

Ad Libitum1 July 1980American HaikuKEHL MARKLEY, M.D.KEHL MARKLEY, M.D.Search for more papers by this authorAuthor, Article, and Disclosure Informationhttps://doi.org/10.7326/0003-4819-93-1-144 SectionsAboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinkedInRedditEmail ExcerptGood morning. How are you? Good morn I SAY How are you? Good morn Our father who art in heaven. Our YOU SAY father who art in I pledge allegiance to the flag of HE SAYS the United States of The cost of living is rising. The SHE SAYS cost of living is America is the strongest and richest WE SAY nation in the world. Earthquake kills thousands in China. YOU SAY Earthquake kills thou I love you. I love you. I love you. THEY SAY I love you. I love We try harder. We try harder. We try WHAT?... This content is PDF only. To continue reading please click on the PDF icon. Author, Article, and Disclosure InformationAffiliations: Bethesda, Maryland PreviousarticleNextarticle Advertisement FiguresReferencesRelatedDetails Metrics 1 July 1980Volume 93, Issue 1_Part_1Page: 144-144 ePublished: 1 December 2008 Issue Published: 1 July 1980 PDF downloadLoading ...
Epilepsy: Its Pathology and Treatment.
Journal: JAMA (1891)

Our website uses cookies to enhance your experience. By continuing to use our site, or clicking "Continue," you are agreeing to our Cookie Policy | Continue JAMA HomeNew OnlineCurrent IssueFor Authors Publications JAMA JAMA Network Open JAMA Cardiology JAMA Dermatology JAMA Health Forum JAMA Internal Medicine JAMA Neurology JAMA Oncology JAMA Ophthalmology JAMA Otolaryngology–Head & Neck Surgery JAMA Pediatrics JAMA Psychiatry JAMA Surgery Archives of Neurology & Psychiatry (1919-1959) Podcasts Clinical Reviews Editors' Summary Medical News Author Interviews More JN Learning / CMESubscribeJobsInstitutions / LibrariansReprints & Permissions Terms of Use | Privacy Policy | Accessibility Statement 2023 American Medical Association. All Rights Reserved Search All JAMA JAMA Network Open JAMA Cardiology JAMA Dermatology JAMA Forum Archive JAMA Health Forum JAMA Internal Medicine JAMA Neurology JAMA Oncology JAMA Ophthalmology JAMA Otolaryngology–Head & Neck Surgery JAMA Pediatrics JAMA Psychiatry JAMA Surgery Archives of Neurology & Psychiatry Input Search Term Sign In Individual Sign In Sign inCreate an Account Access through your institution Sign In Purchase Options: Buy this article Rent this article Subscribe to the JAMA journal
Abstract 3060: YAP1 induces STAT3 phosphorylation &amp; combined blockade enhances chemotherapeutic efficacy
Authors: Masahiro Shibata, Akira Ooki, Yoshikuni Inokawa, Evgeny Izumchenko, Enrico Munari, Giuseppe Bogina, Edward Gabrielson, Anju Singh, Mohammad Obaidul Hoque
Journal: Cancer Research (2019)

Abstract Recent studies have identified transcriptions factors YAP1 and STAT3, as therapeutic targets in cancer, but efforts targeting either YAP1 or STAT3 pathway have met with limited success. Our study is focused on understanding the cross-talk between YAP1 and STAT3 signaling, impact of this cross-talk on lung tumorigenesis, drug resistance and blocking this pathway as a potential therapeutic strategy in lung adenocarcinoma (LUAD). Mechanistically, we demonstrate that YAP1 promotes the phosphorylation of STAT3 through IL-6 upregulation. In clinical LUAD samples, a positive correlation between YAP1 and phosphorylated STAT3 protein as well as an association between YAP1 and IL-6 mRNA was observed. Pre-clinically, genetic and pharmacologic dual inhibitions of YAP1 and STAT3 showed decreased cell growth and increased sensitivity to chemotherapy through the attenuation of cancer-stemness like features. Although verteporfin and S3I-201 were employed as YAP1 and STAT3 inhibitors respectively, verteporfin was found to suppress not only YAP1 but also STAT3, and their combination induced synergistic cytotoxic effects. Furthermore, addition of verteporfin and S3I-201 to standard-of-care chemotherapy regimen significantly inhibited tumor growth in patient-derived xenograft mouse models and attenuated in vivo expansion of malignant stemness. These findings provide the conceptual framework for combined targeting of YAP1 and STAT3 in LUAD. Citation Format: Masahiro Shibata, Akira Ooki, Yoshikuni Inokawa, Evgeny Izumchenko, Enrico Munari, Giuseppe Bogina, Edward Gabrielson, Anju Singh, Mohammad Obaidul Hoque. YAP1 induces STAT3 phosphorylation &amp; combined blockade enhances chemotherapeutic efficacy [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2019; 2019 Mar 29-Apr 3; Atlanta, GA. Philadelphia (PA): AACR; Cancer Res 2019;79(13 Suppl):Abstract nr 3060.
Regulation of Glutaminase Activity and Glutamine Metabolism
Authors: N. P. Curthoys
Journal: Annual Review of Nutrition (1995)

Glutamine is synthesized primarily in skeletal muscle, lungs, and adipose tissue. Plasma glutamine plays an important role as a carrier of nitrogen, carbon, and energy between organs and is used for hepatic urea synthesis, for renal ammoniagenesis, for gluconeogenesis in both liver and kidney, and as a major respiratory fuel for many cells. The catabolism of glutamine is initiated by either of two isoforms of the mitochondrial glutaminase. Liver-type glutaminase is expressed only in periportal hepatocytes of the postnatal liver, where it effectively couples ammonia production with urea synthesis. Kidney­type glutaminase is abundant in kidney, brain, intestine, fetal liver, lymphocytes, and transformed cells, where the resulting ammonia is released without further metabolism. The two isoenzymes have different structural and kinetic properties that contribute to their function and short-term regulation. Although there is a high degree of identity in amino acid sequences, the two glutaminases are the products of different but related genes. The two isoenzymes are also subject to long-term regulation. Hepatic glutaminase is increased during starvation, diabetes, and feeding a high-protein diet, whereas kidney-type glutaminase is increased only in kidney in response to metabolic acidosis. The adaptations in hepatic glutaminase are mediated by changes in the rate of transcription, whereas kidney-type glutaminase is regulated at a posttranscriptional level.
Annual of the Universal Medical Sciences: a Yearly Report of the Progress of the General Sanitary Sciences throughout the World.
Journal: JAMA (1890)

Our website uses cookies to enhance your experience. By continuing to use our site, or clicking "Continue," you are agreeing to our Cookie Policy | Continue JAMA HomeNew OnlineCurrent IssueFor Authors Publications JAMA JAMA Network Open JAMA Cardiology JAMA Dermatology JAMA Health Forum JAMA Internal Medicine JAMA Neurology JAMA Oncology JAMA Ophthalmology JAMA Otolaryngology–Head & Neck Surgery JAMA Pediatrics JAMA Psychiatry JAMA Surgery Archives of Neurology & Psychiatry (1919-1959) Podcasts Clinical Reviews Editors' Summary Medical News Author Interviews More JN Learning / CMESubscribeJobsInstitutions / LibrariansReprints & Permissions Terms of Use | Privacy Policy | Accessibility Statement 2023 American Medical Association. All Rights Reserved Search All JAMA JAMA Network Open JAMA Cardiology JAMA Dermatology JAMA Forum Archive JAMA Health Forum JAMA Internal Medicine JAMA Neurology JAMA Oncology JAMA Ophthalmology JAMA Otolaryngology–Head & Neck Surgery JAMA Pediatrics JAMA Psychiatry JAMA Surgery Archives of Neurology & Psychiatry Input Search Term Sign In Individual Sign In Sign inCreate an Account Access through your institution Sign In Purchase Options: Buy this article Rent this article Subscribe to the JAMA journal