Question: In what county is the Midwest Regional Medical Center?

full_context: Document 1: Oklahoma: Oklahoma had 598 incorporated places in 2010, including four cities over 100,000 in population and 43 over 10,000. Two of the fifty largest cities in the United States are located in Oklahoma, Oklahoma City and Tulsa, and 65 percent of Oklahomans live within their metropolitan areas, or spheres of economic and social influence defined by the United States Census Bureau as a metropolitan statistical area. Oklahoma City, the state's capital and largest city, had the largest metropolitan area in the state in 2010, with 1,252,987 people, and the metropolitan area of Tulsa had 937,478 residents. Between 2000 and 2010, the cities that led the state in population growth were Blanchard (172.4%), Elgin (78.2%), Jenks (77.0%), Piedmont (56.7%), Bixby (56.6%), and Owasso (56.3%).
Document 2: Oklahoma City: Oklahoma City has experienced significant population increases since the late 1990s. In May 2014, the U.S. Census announced Oklahoma City had an estimated population of 620,602 in 2014 and that it had grown 5.3 percent between April 2010 and June 2013. Since the official Census in 2000, Oklahoma City had grown 21 percent (a 114,470 raw increase) according to the Bureau estimates. The 2014 estimate of 620,602 is the largest population Oklahoma City has ever recorded. It is the first city in the state to record a population greater than 600,000 residents and the largest municipal population of the Great Plains region (OK, KS, NE, SD, ND).
Document 3: Midwest City, Oklahoma: Midwest City is a city in Oklahoma County, Oklahoma, United States, and a part of the Oklahoma City metropolitan area. As of the 2010 census, the population was 54,371, making it the eighth largest city in the state.
Document 4: Oklahoma City: As of the 2010 census, there were 579,999 people, 230,233 households, and 144,120 families residing in the city. The population density was 956.4 inhabitants per square mile (321.9/km²). There were 256,930 housing units at an average density of 375.9 per square mile (145.1/km²).
Document 5: Broken Arrow, Oklahoma: Broken Arrow is a city located in the northeastern part of the U.S. state of Oklahoma, primarily in Tulsa County but also with a section of the city in western Wagoner County. It is the largest suburb of Tulsa. According to the 2010 census, Broken Arrow has a population of 98,850 residents and is the fourth-largest city in the state. However, a July 2017, estimate reports that the population of the city is just under 112,000, making it the 280th-largest city in the United States. The city is part of the Tulsa Metropolitan Area, which has a population of 961,561 residents.
Document 6: Oklahoma City: Oklahoma City is the capital and largest city of the state of Oklahoma. The county seat of Oklahoma County, the city ranks 27th among United States cities in population. The population grew following the 2010 Census, with the population estimated to have increased to 620,602 as of July 2014. As of 2014, the Oklahoma City metropolitan area had a population of 1,322,429, and the Oklahoma City-Shawnee Combined Statistical Area had a population of 1,459,758 (Chamber of Commerce) residents, making it Oklahoma's largest metropolitan area. Oklahoma City's city limits extend into Canadian, Cleveland, and Pottawatomie counties, though much of those areas outside of the core Oklahoma County area are suburban or rural (watershed). The city ranks as the eighth-largest city in the United States by land area (including consolidated city-counties; it is the largest city in the United States by land area whose government is not consolidated with that of a county or borough).
Document 7: Oklahoma City: OU Medicine, an academic medical institution located on the campus of The University of Oklahoma Health Sciences Center, is home to OU Medical Center. OU Medicine operates Oklahoma's only level-one trauma center at the OU Medical Center and the state's only level-one trauma center for children at Children's Hospital at OU Medicine, both of which are located in the Oklahoma Health Center district. Other medical facilities operated by OU Medicine include OU Physicians and OU Children's Physicians, the OU College of Medicine, the Oklahoma Cancer Center and OU Medical Center Edmond, the latter being located in the northern suburb of Edmond.
Document 8: Oklahoma City: INTEGRIS Health owns several hospitals, including INTEGRIS Baptist Medical Center, the INTEGRIS Cancer Institute of Oklahoma, and the INTEGRIS Southwest Medical Center. INTEGRIS Health operates hospitals, rehabilitation centers, physician clinics, mental health facilities, independent living centers and home health agencies located throughout much of Oklahoma. INTEGRIS Baptist Medical Center was named in U.S. News & World Report's 2012 list of Best Hospitals. INTEGRIS Baptist Medical Center ranks high-performing in the following categories: Cardiology and Heart Surgery; Diabetes and Endocrinology; Ear, Nose and Throat; Gastroenterology; Geriatrics; Nephrology; Orthopedics; Pulmonology and Urology.
Document 9: Oklahoma City: Oklahoma City is the principal city of the eight-county Oklahoma City Metropolitan Statistical Area in Central Oklahoma and is the state's largest urbanized area. Based on population rank, the metropolitan area was the 42nd largest in the nation as of 2012.
Document 10: Detroit: Within the city of Detroit, there are over a dozen major hospitals which include the Detroit Medical Center (DMC), Henry Ford Health System, St. John Health System, and the John D. Dingell VA Medical Center. The DMC, a regional Level I trauma center, consists of Detroit Receiving Hospital and University Health Center, Children's Hospital of Michigan, Harper University Hospital, Hutzel Women's Hospital, Kresge Eye Institute, Rehabilitation Institute of Michigan, Sinai-Grace Hospital, and the Karmanos Cancer Institute. The DMC has more than 2,000 licensed beds and 3,000 affiliated physicians. It is the largest private employer in the City of Detroit. The center is staffed by physicians from the Wayne State University School of Medicine, the largest single-campus medical school in the United States, and the United States' fourth largest medical school overall.
Document 11: Detroit: Thousands more employees work in Midtown, north of the central business district. Midtown's anchors are the city's largest single employer Detroit Medical Center, Wayne State University, and the Henry Ford Health System in New Center. Midtown is also home to watchmaker Shinola and an array of small and/or startup companies. New Center bases TechTown, a research and business incubator hub that’s part of the WSU system. Like downtown and Corktown, Midtown also has a fast-growing retailing and restaurant scene.
Document 12: Oklahoma City: The Midwest Regional Medical Center located in the suburb of Midwest City; other major hospitals in the city include the Oklahoma Heart Hospital and the Mercy Health Center. There are 347 physicians for every 100,000 people in the city.
Document 13: Oklahoma City: While not in Oklahoma City proper, other large employers within the MSA region include: Tinker Air Force Base (27,000); University of Oklahoma (11,900); University of Central Oklahoma (2,900); and Norman Regional Hospital (2,800).
Document 14: Oklahoma: In descending order of population, Oklahoma's largest cities in 2010 were: Oklahoma City (579,999, +14.6%), Tulsa (391,906, −0.3%), Norman (110,925, +15.9%), Broken Arrow (98,850, +32.0%), Lawton (96,867, +4.4%), Edmond (81,405, +19.2%), Moore (55,081, +33.9%), Midwest City (54,371, +0.5%), Enid (49,379, +5.0%), and Stillwater (45,688, +17.0%). Of the state's ten largest cities, three are outside the metropolitan areas of Oklahoma City and Tulsa, and only Lawton has a metropolitan statistical area of its own as designated by the United States Census Bureau, though the metropolitan statistical area of Fort Smith, Arkansas extends into the state.
Document 15: Charleston, South Carolina: Charleston is the primary medical center for the eastern portion of the state. The city has several major hospitals located in the downtown area: Medical University of South Carolina Medical Center (MUSC), Ralph H. Johnson VA Medical Center, and Roper Hospital. MUSC is the state's first school of medicine, the largest medical university in the state, and the sixth-oldest continually operating school of medicine in the United States. The downtown medical district is experiencing rapid growth of biotechnology and medical research industries coupled with substantial expansions of all the major hospitals. Additionally, more expansions are planned or underway at another major hospital located in the West Ashley portion of the city: Bon Secours-St Francis Xavier Hospital. The Trident Regional Medical Center located in the City of North Charleston and East Cooper Regional Medical Center located in Mount Pleasant also serve the needs of residents of the city of Charleston.
ground_truth: Oklahoma County
sub_queries: Where is the Midwest Regional Medical Center? Answer: Midwest City
Midwest City >> located in the administrative territorial entity Answer: Oklahoma County