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Subjects
- Maciel, Francisco Antonio, 1757-1807.1
- Massachusetts1
- Massachusetts General Hospital.3
- McLean Asylum for the Insane.1
- Medicine1
- Medico-Chirurgical College of Philadelphia.1
- Medico-Chirurgical Hospital (Philadelphia, Pa.)1
- Mexico1
- Middlesex Hospital.2
- Military Hygiene1
- Military Medicine2
- Minnesota1
- Missouri2
- Mother-Child Relations1