PT - JOURNAL ARTICLE AU - Gemaennes TI - Encore AID - 10.1136/ard.50.9.660 DP - 1991 Sep 01 TA - Annals of the Rheumatic Diseases PG - 660--660 VI - 50 IP - 9 4099 - http://ard.bmj.com/content/50/9/660.short 4100 - http://ard.bmj.com/content/50/9/660.full SO - Ann Rheum Dis1991 Sep 01; 50