PT - JOURNAL ARTICLE ED - , TI - Rheumatological stamp AID - 10.1136/ard.52.5.319 DP - 1993 May 01 TA - Annals of the Rheumatic Diseases PG - 319--319 VI - 52 IP - 5 4099 - http://ard.bmj.com/content/52/5/319.short 4100 - http://ard.bmj.com/content/52/5/319.full SO - Ann Rheum Dis1993 May 01; 52