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Subjects
- China9
- Health Education9
- Rogers, Frank B. (Frank Bradway), 1914-1987.7
- Shannon, James A. (James Augustine), 1904-1994.7
- Child, Preschool6
- Physicians6
- Schools, Nursery6
- History of Medicine4
- Hookworm Infections -- transmission4
- Fredrickson, Donald S.3
- Hookworm Infections -- prevention & control3
- Laboratory Personnel3
- National Library of Medicine (U.S.)3
- Sanitation3
- DeBakey, Michael E. (Michael Ellis), 1908-2008.2
- Hookworm Infections -- parasitology2
- Intestinal Diseases, Parasitic2
- Libraries, Medical2
- Abdominal Pain1
- Advisory Committees1