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Subjects
- United States94
- Child56
- Infant47
- Family Planning Services33
- Radiography28
- Emergencies23
- Physical Examination21
- Adolescent19
- Contraception17
- Parent-Child Relations14
- Tropical Medicine14
- Brain -- physiology13
- History, 20th Century13
- Oral Hygiene13
- Military Medicine12
- Community Health Services11
- History, 19th Century11
- India11
- National Library of Medicine (U.S.)11
- Communicable Disease Control10