TY - JOUR T1 - Rheumatic diseases JF - Annals of the Rheumatic Diseases JO - Ann Rheum Dis SP - 1295 LP - 1295 DO - 10.1136/ard.51.12.1295-b VL - 51 IS - 12 AU - P Croft Y1 - 1992/12/01 UR - http://ard.bmj.com/content/51/12/1295.2.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -