Given a passage, construct a question on the basis of the information present in the passage. Construct the question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) it answer uses text phrases from the passage. Avoid creating questions that (i) can't be answered correctly without actually understanding the passage and (ii) uses the same words or phrases given in the passage.

Ex Input:
To describe the prevalence of prolonged fatigue, chronic fatigue syndrome (CFS)-like illness, and associated symptom patterns in adolescents attending primary care.', 'The design was cross-sectional. A questionnaire designed by the authors assessing fatigue and associated symptoms was administered to 901 adolescents (aged 11-18 years) attending 12 primary care clinics in the Chicago area. Prevalence rates for prolonged fatigue and CFS-like illness were calculated. Univariate comparisons involving sociodemographic data and fatigue severity were made between adolescents with and without prolonged fatigue, and sociodemographic and symptom predictors of prolonged fatigue were identified using logistic regression analysis.', 'Prolonged fatigue (> or = 1 month) occurred at a rate of 8.0% and CFS-like illness occurred at a rate of 4.4%. Adolescents with prolonged fatigue were significantly older and also reported greater fatigue severity than those without fatigue. Findings from logistic regression indicated that, in addition to increasing age, headaches, muscle pains, fever, and fatigue made worse by exercise were significantly associated with prolonged fatigue.

Ex Output:
Does sociodemographic and symptom correlate of fatigue in an adolescent primary care sample?


Ex Input:
A distinct velocity pattern represented by a "notch" is observed during the time interval between the end of the systolic and the onset of the early diastolic velocity wave on longitudinal myocardial velocity curve. The origin of the post-systolic velocity notch (PSN) has not been resolved.', 'The high frame rate color tissue Doppler imaging of the apical longitudinal axis was performed in 32 healthy subjects.', 'The time delays of the PSN onset at the posterior aortic wall (AW), the mid anteroseptal wall (MAS) and the posterior mitral annulus (MA) relatively to the anterior aortic annulus (AA) were found to be significantly longer than zero (5.1 ± 2.2, 6.0 ± 2.3, 6.8 ± 2.8 ms; p < 0.001). The amplitude was the highest at the AA when compared to the AW, the MAS and the MA (4.77 ± 1.28 vs. 2.88 ± 1.11, 2.15 ± 0.73, 2.44 ± 1.17 cm/s; p < 0.001). A second PSN spike was identifiable in 10/32 (31%) of the studied subjects at the AA. Of these, 9 (28%) exhibited a second PSN spike at the AW, 3 (9%) at the MAS and no one at the MA.

Ex Output:
Does the tissue Doppler imaging derived post-systolic velocity notch originate at the aortic annulus?


Ex Input:
Medical documentation is important for communication among health care professionals, research, legal defense, and reimbursement. Previous studies have indicated insufficient documentation by health care providers and resistance among physicians to comply with the new guidelines. Data in the intensive care unit (ICU) subpopulation are scarce. We examined the hypothesis that a newly appointed neurointensivist may alter documentation practices in a university hospital setting.', 'We sampled medical records of neurological intensive care unit (NICU) patients admitted with three specific diagnoses (head trauma, intracerebral hemorrhage, and subarachnoid hemorrhage) and examined changes in the documentation of important prognostic variables in two time periods: before and after the appointment of a neurointensivist.', "Overall, documentation improved from 32.5 to 57.5% (odds ratio, 95% confidence interval 2.8, 1.9-4.2) in the after period. Documentation using Glasgow Coma Scale, clot volume, Hunt & Hess scale, and Fisher's grade also improved significantly in each of the diagnoses examined in the after period.

Ex Output:

Does documentation in medical records improve after a neurointensivist 's appointment?