Subjects
- Labor, Obstetric30
- Medicine, Arabic30
- Menstruation Disturbances30
- Plant Extracts -- therapeutic use30
- Respiratory Therapy30
- Respiratory Tract Diseases30
- Surgical Instruments -- history30
- United States Public Health Service30
- American National Red Cross.29
- Anesthesia29
- Bacterial Physiological Phenomena29
- Blood Transfusion29
- Disinfection -- methods29
- General Surgery -- history29
- Gorgas, William Crawford, 1854-1920.29
- Heart Diseases -- diagnosis29
- Jones, Harold Wellington, 1877-1958.29
- Laryngeal Diseases29
- Menstruation29
- Military Medicine -- education29