Table 3.
Number and percentage of articles published per country relative to the affiliation of authors (n=952).
| Country | Articles, n (%) |
| United States | 514 (54.0) |
| United Kingdom | 87 (9.1) |
| Australia | 44 (4.6) |
| Canada | 41 (4.3) |
| China | 40 (4.2) |
| Germany | 34 (3.6) |
| Spain | 26 (2.7) |
| Netherlands | 21 (2.2) |
| France | 14 (1.5) |
| Italy | 14 (1.5) |
| Greece | 11 (1.2) |
| Japan | 11 (1.2) |
| New Zealand | 10 (1.1) |
| Switzerland | 10 (1.1) |
| India | 9 (0.9) |
| Israel | 9 (0.9) |
| Norway | 8 (0.8) |
| Sweden | 8 (0.8) |
| Portugal | 6 (0.6) |
| Belgium | 4 (0.4) |
| Ireland | 4 (0.4) |
| Austria | 3 (0.3) |
| Brazil | 3 (0.3) |
| Bulgaria | 3 (0.3) |
| Egypt | 3 (0.3) |
| Romania | 3 (0.3) |
| Turkey | 3 (0.3) |
| Luxembourg | 2 (0.2) |
| South Africa | 2 (0.2) |
| Argentina | 1 (0.1) |
| Czech Republic | 1 (0.1) |
| Poland | 1 (0.1) |
| Singapore | 1 (0.1) |
| Slovakia | 1 (0.1) |