Financial support of papers
| Medical | Intervention | |||
| Surgical | Medical and surgical | Total | ||
| Corporate | ||||
| Count | 6 | 2 | 4 | 12 |
| % Corporate | 50.0 | 16.7 | 33.3 | 100.0 |
| Government | ||||
| Count | 42 | 1 | 4 | 47 |
| % Government | 89.4 | 2.1 | 8.5 | 100.0 |
| Academia | ||||
| Count | 55 | 21 | 16 | 92 |
| % Academia | 59.8 | 22.8 | 17.4 | 100.0 |
| Other | ||||
| Count | 14 | 3 | 0 | 17 |
| % Other | 82.4 | 17.6 | 0.0 | 100.0 |
| Government and university | ||||
| Count | 31 | 3 | 3 | 37 |
| % Government and university | 83.8 | 8.1 | 8.1 | 100.0 |
| Corporate and u niversity | ||||
| Count | 4 | 1 | 2 | 7 |
| % Corporate and university | 57.1 | 14.3 | 28.6 | 100.0 |
| Unclear | ||||
| Count | 43 | 17 | 6 | 66 |
| % Unclear | 65.2 | 25.8 | 9.1 | 100.0 |
| Total | ||||
| Count | 195 | 48 | 35 | 278 |
| % All | 70.1 | 17.3 | 12.6 | 100.0 |