Subjects
- Hygiene608
- Government Regulation603
- Veterans595
- World War I559
- Philadelphia531
- United States. Food and Drug Administration524
- New York City498
- Pharmaceutical Preparations490
- Surgeons488
- Massachusetts485
- Physiological Phenomena480
- National Library of Medicine (U.S.)470
- Therapeutics446
- France443
- Education, Medical431
- Anniversaries and Special Events420
- Cholera396
- Surgical Procedures, Operative390
- Mexico388
- Equipment and Supplies363