Full Papers

Differences in understanding and application of 1987 ACR criteria for rheumatoid arthritis and 1991 ESSG criteria for spondylarthropathy. A pilot survey

J.M. Berthelot, H.J. Bernelot-Moens, M. Klarlund, D. McGonagle, A. Calin, H.R. Schumacher, B. Combe, M. De Bandt, A.A. Drosos, R.M. Flipo, B.J. Harrison, K. Kaarela, P. Le Goff, O. Meyer, L. Punzi, C.A. Zerbini, A. Saraux, and the CRI Group