Most productive institutions
| Rank | Institution | No. of papers | Per cent | Total citations | Median (IQR) | Country |
|---|---|---|---|---|---|---|
| 1 | University of Nottingham | 266 | 14.06 | 11 540 | 18 (6–44.75) | UK |
| 2 | Boston University | 228 | 12.05 | 12 328 | 21.5 (6–57) | USA |
| 3 | Centro Espanol de Investigacion Farmacoepidemiologica (CEIFE) | 163 | 8.62 | 8493 | 26 (7–59.5) | Spain |
| 4 | University College London | 156 | 8.25 | 5226 | 14 (4.75–37) | UK |
| 5 | London School of Hygiene & Tropical Medicine | 124 | 6.55 | 3696 | 14 (4–40.5) | UK |
| 6 | University of Utrecht | 118 | 6.24 | 5067 | 17.5 (4–48.75) | The Netherlands |
| 7 | University of Pennsylvania | 110 | 5.81 | 7508 | 24.5 (10–64.25) | USA |
| 8 | Medicines and Healthcare Products Regulatory Agency | 94 | 4.97 | 2623 | 14 (4–33.25) | UK |
| 9 | King's College London | 92 | 4.86 | 2221 | 13 (4–32.75) | UK |
| 10 | University of Oxford | 86 | 4.54 | 1806 | 9.5 (3–23.25) | UK |