Question: What medical field do both MedStar Georgetown University Hospital and St. Elizabeths Hospital have?

Context paragraphs:
Douglass (Washington, D.C.): Douglass is a residential neighborhood in Southeast Washington, D.C., on the eastern side of St. Elizabeths Hospital, on the border of the Congress Heights Metro Station.  It is bounded by Suitland Parkway to the north and east, Alabama Avenue to the south, and the St. Elizabeths campus to the west.

St. Elizabeths Hospital: St. Elizabeths Hospital opened in 1855 as the first federally operated psychiatric hospital in the United States.  Housing over 8,000 patients at its peak in the 1950s, the hospital at one point had a fully functioning medical-surgical unit, a school of nursing, and accredited internships and psychiatric residencies.  Its campus was designated a National Historic Landmark in 1990.

Congress Heights: Congress Heights is a residential neighborhood in southeast Washington, D.C., in the United States.  The irregularly shaped neighborhood is bounded by the St. Elizabeths Hospital campus, Lebaum Street SE, 4th Street SE, and Newcomb Street SE on the northeast; Shepard Parkway and South Capitol Street on the west; Atlantic Street SE and 1st Street SE (as far as Chesapeake Street SE) on the south; Oxon Run Parkway on the southeast; and Wheeler Street SE and Alabama Avenue SE on the east.  Commercial development is heavy along Martin Luther King, Jr.  Avenue and Malcolm X Avenue.

Loreta Janeta Velázquez: Loreta Janeta Velázquez (June 26, 1842 – 1923), was a Cuban-born woman who masqueraded as a male Confederate soldier during the American Civil War.  After her soldier husband's accidental death, she enlisted in the Confederate States Army in 1861.  She then fought at Bull Run, Ball's Bluff, and Fort Donelson, but was discharged when her gender was discovered while in New Orleans.  Undeterred, she reenlisted and fought at Shiloh, until unmasked once more.  She then became a Confederate spy, working in both male and female guises, and as a double agent also reporting to the U.S. Secret Service.  She remarried three more times, being widowed in each instance.  According to William C Davis, she died in January 1923 under the name Loretta J. Beard after many years away from the public eye in a public psychiatric facility, St. Elizabeths Hospital.  She spied on the Union for about 5 years.

MedStar Washington Hospital Center: MedStar Washington Hospital Center is the largest private hospital in Washington, D.C. A member of MedStar Health, the not-for-profit Hospital Center is licensed for 926 beds.  Health services in primary, secondary and tertiary care are offered to adult and neonatal patients.  It also serves as a teaching hospital for Georgetown University School of Medicine.

Winfred Overholser: Winfred Overholser (1892 – October 6, 1964) was an American psychiatrist, president of the American Psychiatric Association, and for 25 years the superintendent of St. Elizabeths Hospital, a federal institution for the mentally ill in Washington, D.C.

Southeast, Washington, D.C.: Southeast (SE or S.E.) is the southeastern quadrant of Washington, D.C., the capital of the United States, and is located south of East Capitol Street and east of South Capitol Street.  It includes the Capitol Hill and Anacostia neighborhoods, the Navy Yard, the Joint Base Anacostia-Bolling (JBAB), the U.S. Marine Barracks, the Anacostia River waterfront, Eastern Market, the remains of several Civil War-era forts, historic St. Elizabeths Hospital, RFK Stadium, Nationals Park, and the Congressional Cemetery.  It is also contains a landmark known as "The Big Chair," located on Martin Luther King Avenue.  The quadrant is bisected by the Anacostia River, with the portion that is west of the river sometimes referred to as "Near Southeast".

MedStar Georgetown University Hospital: MedStar Georgetown University Hospital is one of the national capital area's oldest academic teaching hospitals.  It is a not-for-profit, acute care teaching and research facility located in the Georgetown neighborhood of the Northwest Quadrant of Washington, D.C.  MedStar Georgetown is co-located with the Georgetown University Medical Center and is affiliated with the Georgetown University School of Medicine.  Its clinical services represent one of the largest, most geographically diverse, and fully integrated healthcare and delivery networks in the area.  MedStar Georgetown is home to the internationally known Lombardi Comprehensive Cancer Center, as well as centers of excellence in the neurology, neurosurgery, psychiatry, gastroenterology, transplant and vascular surgery.  Originally named Georgetown University Hospital, it became part of the MedStar Health network in 2000.

Georgetown University School of Medicine: Georgetown University School of Medicine, a medical school opened in 1851, is one of Georgetown University's five graduate schools.  It is located on Reservoir Road in the Georgetown neighborhood of Washington, DC, adjacent to the University's main campus.  The School of Medicine works in association with the 609-bed Georgetown University Hospital, Washington Hospital Center, and nine other affiliated federal and community hospitals in the Washington metropolitan area.  Georgetown is the oldest Catholic medical school in the United States.

Trygg Mammamedisin: Trygg mammamedisin ('Safe Mommy Medicine') is a public service which gives individual advice about medical drugs to pregnant and breastfeeding women.  The service is web based, and is funded by the Ministry of Health and Care Services.  Trygg mammamedisin is managed by RELIS - Regional Drug Information Centres.  These centres are a publically funded service for health professionals, offering producer-indepedendent information about medical drugs.  The answers provided in Trygg mammamedisin are generated by RELIS employees, who are all certified pharmacists or medical doctors working at the University Hospital of North Norway, Haukeland University Hospital, St. Olav's University Hospital and Oslo University Hospital.

Supporting paragraphs: MedStar Georgetown University Hospital St. Elizabeths Hospital
Answer: psychiatry