Subjects
- University of Pennsylvania. Department of Medicine.2
- Urban Population2
- Uremia2
- Uterine Neoplasms -- surgery2
- Vital Statistics2
- Vocal Cord Paralysis2
- Water Microbiology2
- Water Purification2
- Wounds, Gunshot2
- X-Rays2
- Yellow Fever -- etiology2
- Abdominal Injuries1
- Abdominal Neoplasms -- surgery1
- Abortion, Criminal -- legislation & jurisprudence1
- Abortion, Veterinary -- etiology1
- Abscess -- therapy1
- Abstracting and Indexing as Topic -- standards1
- Accidents1
- Accidents, Occupational1
- Accommodation, Ocular -- physiology1