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Subjects
- Umbilical Cord -- surgery1
- United Kingdom1
- United States26
- United States. Marine Hospital (New Orleans, La.)1
- United States. Marine Hospital Service.1
- Universities2
- Urban Population1
- Urbana (Ohio). Board of Health.1
- Urethra -- surgery1
- Urethral Stricture1
- Urethral Stricture -- etiology1
- Urethral Stricture -- surgery2
- Urethral Stricture -- therapy2
- Urethritis -- surgery1
- Urinalysis2
- Urinary Catheterization1
- Urogenital Surgical Procedures1
- Urologic Surgical Procedures1
- Uterine Cervical Neoplasms1
- Uterine Diseases -- surgery1