21-40 (of 922 disciplines)
| # | Discipline | Articles | Citations | h-index |
|---|---|---|---|---|
| 21 | Arts and Humanities | 7.3M | 64.8M | 1,757 |
| 22 | Genetics | 1.9M | 61.6M | 1,348 |
| 23 | Ecology | 2.5M | 61.5M | 1,181 |
| 24 | Microbiology | 2.0M | 57.1M | 986 |
| 25 | Mechanical Engineering | 2.6M | 52.8M | 1,144 |
| 26 | Inorganic Chemistry | 2.3M | 51.2M | 910 |
| 27 | Immunology | 1.6M | 50.7M | 1,099 |
| 28 | Oncology | 2.1M | 49.7M | 1,113 |
| 29 | Physiology | 1.5M | 48.1M | 1,128 |
| 30 | Neurology | 1.9M | 45.7M | 1,039 |
| 31 | Organic Chemistry | 1.9M | 45.3M | 795 |
| 32 | Electrical Engineering | 2.6M | 44.3M | 1,069 |
| 33 | Energy | 2.0M | 42.8M | 902 |
| 34 | Economics | 1.9M | 42.5M | 1,378 |
| 35 | Clinical Neurology | 1.7M | 41.9M | 1,011 |
| 36 | Software Engineering | 2.1M | 40.9M | 1,201 |
| 37 | Earth Science | 2.0M | 40.9M | 942 |
| 38 | Materials Chemistry | 1.7M | 40.5M | 888 |
| 39 | Surgery | 2.6M | 37.3M | 722 |
| 40 | Applied Mathematics | 2.0M | 37.3M | 1,226 |