TY - JOUR T1 - Abstracts JF - Annals of the Rheumatic Diseases JO - Ann Rheum Dis SP - 65 LP - 94 DO - 10.1136/ard.28.1.65 VL - 28 IS - 1 A2 - , Y1 - 1969/01/01 UR - http://ard.bmj.com/content/28/1/65.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -