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Frequency distribution of subject areas of documents
| Subject | Mazandaran | Babol | Guilan | Golestan | Total | |
|---|---|---|---|---|---|---|
| 1 | Pharmacology | 120 | 6 | 3 | 9 | 138 |
| 2 | Biology | 109 | 10 | 14 | 37 | 170 |
| 3 | Chemistry | 88 | 3 | 1 | 2 | 94 |
| 4 | Biochemistry & Genetics | 85 | 27 | 17 | 84 | 213 |
| 5 | Immunology & Microbiology | 37 | 16 | 20 | 20 | 93 |
| 6 | Neuroscience | 20 | 8 | 3 | 18 | 49 |
| 7 | Environmental science | 2 | 6 | 4 | 2 | 14 |
| 8 | Dentistry | 1 | 7 | 6 | 1 | 15 |
| Total | 84 | 173 | 190 | 115 | 786 |
