Subfield
- Education11
- Infectious Diseases11
- Political Science and International Relations10
- Public Health, Environmental and Occupational Health9
- Agronomy and Crop Science8
- Obstetrics and Gynecology6
- Law5
- Parasitology5
- Soil Science4
- Gender Studies3
- General Agricultural and Biological Sciences3
- General Health Professions3
- Pediatrics, Perinatology and Child Health3
- Safety Research3
- Small Animals3
- Virology3
- Animal Science and Zoology2
- Demography2
- Development2
- Human Factors and Ergonomics2