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Field of the journal.
| Field of the journal | Studies (N=1307), n (%) |
| Medicine | 712 (54.5) |
| Informatics–mathematics–physics | 373 (28.5) |
| Critical care | 242 (18.5) |
| Biology–microbiology–immunology | 82 (6.3) |
| Multidisciplinary sciences | 63 (4.8) |
| Health care sciences–services | 56 (4.3) |
| Pharmacology–pharmacy | 39 (3) |
| Surgery | 34 (2.6) |
| Environmental sciences | 22 (1.7) |
| Neurosciences | 22 (1.7) |
| Anesthesiology | 21 (1.6) |
| Emergency | 17 (1.3) |
| Genetics–heredity | 12 (0.9) |
| Nursing | 10 (0.8) |
| Management sciences | 4 (0.3) |
