RT Journal Article SR Electronic T1 Straingauge plethysmography in the assessment of joint inflammation. JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP 194 OP 198 DO 10.1136/ard.30.2.194 VO 30 IS 2 A1 I Vadasz YR 1971 UL http://ard.bmj.com/content/30/2/194.abstract AB