Share of neurointerventional research for 20 top-ranking countries between 2003 and 2012a
| Country | Department of the First Author | ||||
|---|---|---|---|---|---|
| Neurosurgery | Radiology | Neurology | Miscellaneous | Total | |
| United States | 298 | 165 | 120 | 78 | 661 (31.1) |
| Japan | 240 | 24 | 9 | 14 | 287 (13.5) |
| Chinab | 121 | 46 | 15 | 2 | 184 (8.7) |
| South Korea | 90 | 68 | 7 | 5 | 170 (8.0) |
| Germany | 18 | 85 | 24 | 9 | 136 (6.4) |
| France | 12 | 56 | 10 | 6 | 84 (4.0) |
| Italy | 11 | 28 | 6 | 11 | 56 (2.6) |
| Canada | 12 | 27 | 5 | 8 | 52 (2.5) |
| Turkey | 8 | 31 | 1 | 7 | 47 (2.2) |
| United Kingdom | 14 | 21 | 4 | 3 | 42 (2.0) |
| Spain | 3 | 18 | 12 | 5 | 38 (1.8) |
| Taiwan | 3 | 23 | 6 | 3 | 35 (1.6) |
| The Netherlands | 0 | 30 | 3 | 1 | 34 (1.6) |
| Switzerland | 2 | 20 | 10 | 1 | 33 (1.6) |
| India | 1 | 17 | 2 | 7 | 27 (1.3) |
| Australia | 6 | 10 | 6 | 3 | 25 (1.2) |
| Brazil | 7 | 12 | 2 | 3 | 24 (1.1) |
| Poland | 7 | 12 | 1 | 4 | 24 (1.1) |
| Belgium | 5 | 12 | 2 | 2 | 21 (1.0) |
| Israel | 11 | 1 | 4 | 2 | 18 (0.8) |