Question: Where are Psychiatric Institute of Washington and Children's National Medical Center located?
Context: The Ohio State University Wexner Medical Center, formerly called The Ohio State University Medical Center (OSUMC), is a multidisciplinary academic medical center located in Columbus, Ohio, United States, on the main campus of The Ohio State University (OSU).  In 2010, the center was ranked one of "America's Best" by U.S. News & World Report in 11 specialties.  OSU Medical Center was the only central Ohio hospital ranked as "America's Best" in 2010.  However, as of 2016, the center's health-related programs garnered the best rankings of all at the medical center, including nursing-midwifery (#28), occupational therapy (#12), physical therapy (#10), and pharmacy (#6).  In 2016, OSUMC was ranked in 7 specialties, with only one medicine-related area breaking into the Top 15 rankings (ear, nose, and throat). The Psychiatric Institute of Washington (PIW) is an acute (104 bed) psychiatric hospital in Washington, D.C. Opened in 1967, PIW is a short-term, private hospital.  It offers behavioral healthcare to patients suffering from mental and addictive illnesses, including children, adolescents, adults and the elderly.  Services offered by PIW include inpatient, partial and intensive outpatient hospitalization, and group treatment programs for substance abuse and addiction. John C. Markowitz (born 1954 in New York City) is an American physician, a Professor of Clinical Psychiatry at the Columbia University College of Physicians & Surgeons and a Psychiatric Researcher at the New York State Psychiatric Institute.  For several decades he has conducted research on psychotherapies and medications as treatments for mood disorders (major depressive disorder and dysthymic disorder), anxiety disorders, and personality disorders.  He is currently conducting an outcome study of three psychotherapies for Posttraumatic Stress Disorder (PTSD) thanks to a five year grant from the National Institute of Mental Health.  He is most widely published in the area of interpersonal psychotherapy or IPT, a manualized form of treatment, in which he was trained by the late Gerald L. Klerman, M.D. Dr. Markowitz is a graduate of Columbia University and Columbia University College of Physicians and Surgeons and received his psychiatric residency training at the Payne Whitney Psychiatric Clinic of Cornell University Medical School/New York-Presbyterian Hospital. Banner - University Medical Center Tucson (BUMCT), formerly University Medical Center and the University of Arizona Medical Center, is a private, non-profit, 487-bed acute-care hospital located on the campus of the University of Arizona in Tucson, Arizona.  BUMCT is part of the University of Arizona Health Sciences (UAHS) center campus which includes the university's Colleges of Medicine, Nursing, Pharmacy and Public Health.  It is Southern Arizona's only Level I trauma center for both adult and pediatric patients.  BUMCT is one of two University of Arizona affiliated academic medical centers in Tucson with Banner - University Medical Center South (formerly Kino Community Hospital, University Physicians Healthcare Hospital, and University of Arizona Medical Center - South Campus) being the other such institution.  The area's only dedicated Children's hospital, Banner Children's at Diamond Children's Medical Center, is located within and adjacent to BUMCT. The Beckman Research Institute of City of Hope (BRI) is a not-for-profit medical research facility located at and partnering with the City of Hope National Medical Center in Duarte, CA, United States.  It is dedicated to studying normal and abnormal biological processes which may be related to cancer, diabetes, HIV/AIDS and other life-threatening diseases.  Both basic and clinical research are carried out in cooperation with the City of Hope National Medical Center.  The institute itself is organized into more than a dozen departments and divisions.  As of 2013, the director is Steven T. Rosen.  The Beckman Research Institute also hosts the Irell & Manella Graduate School of Biological Sciences whose founding dean was Arthur Riggs. Baylor College of Medicine (BCM), located in the Texas Medical Center in Houston, Texas, US, is a health sciences university.  It includes a medical school, Baylor College of Medicine; the Graduate School of Biomedical Sciences; the School of Allied Health Sciences; and the National School of Tropical Medicine.  The school, located in the middle of the world's largest medical center (Texas Medical Center), is part owner of Baylor St. Luke's Medical Center, part of the CHI St. Luke's Health system, and has hospital affiliations with: Harris Health System, Texas Children's Hospital, The University of Texas MD Anderson Cancer Center, Memorial Hermann - The Institute for Rehabilitation and Research, Menninger Clinic, the Michael E. DeBakey Veterans Affairs Medical Center and Children's Hospital of San Antonio. Yuval Neria (Hebrew: יובל נריה; July 9, 1952, Israel) is a Professor of Medical Psychology at the Departments of Psychiatry and Epidemiology at Columbia University Medical Center (CUMC), and Director of Trauma and PTSD Program, and a Research Scientist at the New York State Psychiatric Institute (NYSPI) and Columbia University Department of Psychiatry. Children’s National Medical Center (formerly DC Children’s Hospital) is ranked among the top 10 children’s hospitals in the country by "U.S. News & World Report."  Located just north of the McMillan Reservoir and Howard University, it shares grounds with Washington Hospital Center, National Rehabilitation Hospital, and the DC Veterans Affairs Medical Center.  Kurt Newman, M.D., has served as the president and chief executive officer of Children’s National since 2011.  Children's National is a not-for-profit institution that performs more than 450,000 visits each year.  Featuring 303 beds and a Level IV NICU, Children's National is the regional referral center for pediatric emergency, trauma, cancer, cardiac and critical care as well as neonatology, orthopaedic surgery, neurology and neurosurgery. Columbia University Herbert and Florence Irving Medical Center (CUMC) is an academic medical center and the largest campuses of New York-Presbyterian Hospital.  It includes Columbia University's College of Physicians and Surgeons, College of Dental Medicine, School of Nursing and Mailman School of Public Health, as well as the Morgan Stanley Children's Hospital, the New York State Psychiatric Institute, the Audubon Biomedical Research Park, and numerous other institutions. The New York State Psychiatric Institute, located in the Columbia University Medical Center in the Washington Heights neighborhood of Manhattan, New York City, was established in 1895 as one of the first institutions in the United States to integrate teaching, research and therapeutic approaches to the care of patients with mental illnesses.  In 1925, the Institute affiliated with Presbyterian Hospital, now New York-Presbyterian Hospital, adding general hospital facilities to the Institute's psychiatric services and research laboratories.
Answer: Washington, D.C.