PT - JOURNAL ARTICLE ED - , TI - Correction AID - 10.1136/ard.29.3.343 DP - 1970 May 01 TA - Annals of the Rheumatic Diseases PG - 343--343 VI - 29 IP - 3 4099 - http://ard.bmj.com/content/29/3/343.short 4100 - http://ard.bmj.com/content/29/3/343.full SO - Ann Rheum Dis1970 May 01; 29