Participating rheumatologists according to country of origin
| Country | No |
|---|---|
| Australia | 2 |
| Austria | 24 |
| Belgium | 13 |
| Brazil | 22 |
| Canada | 10 |
| Czech Republic | 8 |
| Denmark | 16 |
| England | 81 |
| Finland | 16 |
| France | 67 |
| Germany | 84 |
| Greece | 14 |
| Ireland | 15 |
| Italy | 46 |
| Mexico | 4 |
| Netherlands | 19 |
| Norway | 22 |
| Portugal | 16 |
| Spain | 47 |
| Sweden | 24 |
| Total | 550 |