Subfield
- Education231
- Infectious Diseases177
- Political Science and International Relations168
- Safety Research132
- Law126
- Linguistics and Language102
- General Agricultural and Biological Sciences98
- Human Factors and Ergonomics92
- Language and Linguistics91
- Gender Studies88
- Agronomy and Crop Science83
- General Health Professions83
- Soil Science82
- Public Health, Environmental and Occupational Health81
- Parasitology72
- Developmental and Educational Psychology64
- Obstetrics and Gynecology62
- Accounting60
- Development58
- Pediatrics, Perinatology and Child Health56