[Untitled photo, possibly related to: Carlisle, Pennsylvania. U.S. Army medical field service school. Army doctors walking to classes after lunch. These doctors are taken from civilian life for a five-week course in how the Army, and particularly the Medical corps, functions before going into active service. Their ranks range from first lieutenant to major, depending on their age and experience and on whether they were formerly reserve officers]. Sourced from the Library of Congress.
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