- National Institute of Allergy and Infectious Diseases (U.S.)43
- Parran, Thomas, Jr., 1892-1968.43
- Chemistry Techniques, Analytical42
- Delivery of Health Care42
- Emblems and Insignia42
- Formularies as Topic42
- Growth Disorders42
- Hot Temperature42
- Knopf, S. Adolphus (Sigard Adolphus), 1857-1940.42
- Masturbation42
- Morals42
- Mosquito Control42
- Mother-Child Relations42
- Mothers42
- Radiography42
- Anatomy, Regional41
- Billings, John S. (John Shaw), 1838-1913.41
- Civil Defense41
- Consensus Development Conferences, NIH as Topic41
- Drug Development41