RT Journal Article SR Electronic T1 Studies on the mode of action of non-steroid anti-inflammatory drugs. JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP 540 DO 10.1136/ard.31.6.540 VO 31 IS 6 A1 Willoughby, D A A1 DiRosa, M YR 1972 UL http://ard.bmj.com/content/31/6/540.abstract AB