medical corps
Refers to a military medical unit or corps responsible for healthcare, first aid, and sanitation in the field.
衛生隊が負傷者を後方へ搬送した。
The medical corps transported the wounded to the rear.
Compound of 衛生 (hygiene, sanitation) and 隊 (corps, unit). The exact historical derivation is uncertain; the term is conventionally associated with military medical units.