Table 2.
The top 10 productive institutions.
| Rank | Institutions | Country | Np | Nc | Na | H-Index |
|---|---|---|---|---|---|---|
| 1 | University of California System | USA | 29 | 1345 | 46.38 | 17 |
| 2 | US Department of Veterans Affairs | USA | 27 | 837 | 31.00 | 15 |
| 3 | Veterans Health Administration VHA | USA | 26 | 812 | 31.23 | 14 |
| 4 | Shanghai Jiao Tong University | China | 24 | 461 | 19.21 | 12 |
| 5 | Pennsylvania Commonwealth System of Higher Education PCSHE |
USA | 20 | 713 | 35.65 | 11 |
| 6 | Harvard University | USA | 19 | 1273 | 67 | 18 |
| 7 | Sichuan University | China | 19 | 297 | 15.63 | 11 |
| 8 | University of Pittsburgh | USA | 19 | 706 | 37.16 | 11 |
| 9 | Chang Gung University | China | 18 | 660 | 36.67 | 11 |
| 10 | University of Toronto | Canada | 18 | 1204 | 66.89 | 15 |