Subjects
- Hygiene614
- Government Regulation605
- Veterans595
- World War I560
- Philadelphia532
- United States. Food and Drug Administration524
- New York City503
- Pharmaceutical Preparations494
- Massachusetts489
- Surgeons489
- Physiological Phenomena480
- National Library of Medicine (U.S.)470
- Therapeutics447
- France444
- Education, Medical434
- Anniversaries and Special Events423
- Cholera396
- Surgical Procedures, Operative394
- Mexico390
- Equipment and Supplies368
