Source Information U.S., World War II Hospital Admission Card Files, 1942-1954 [database on-line]. Lehi, UT, USA: Operations, Inc., 2019.
Original data:

Hospital Admission Card Files, ca. 1970 - ca. 1970. NAID: 570973. Records of the Office of the Surgeon General (Army), 1775 - 1994. Record Group 12. The National Archives at College Park, MD. USA

About U.S., World War II Hospital Admission Card Files, 1942-1954

The files contain records pertaining to some 5.3 million patients, mostly U.S. Army personnel wounded in battle during World War II and the Korean War. The World War II records include only Army personnel treated at Army facilities, but the Korean War records include a few records (approximately 5 percent) for non-Army personnel and non-Army treatment facilities (approximately 4 percent). The records contain various medical treatment information about each patient including diagnoses, operations, and dates and places of hospitalization. The original records do not contain the name of the hospital patient, but list military service number, age, race, sex, place of birth, rank and unit. The names of some patients were identified and added to the record by comparing the service number to other military record collections available on Ancestry.