RT Journal Article SR Electronic T1 Skeletal Muscle Involvement in Systemic Sclerosis JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP 281 OP 288 DO 10.1136/ard.28.3.281 VO 28 IS 3 A1 Thompson, John M. A1 Bluestone, Rodney A1 Bywaters, E. G. L. A1 Dorling, J. A1 Johnson, Margaret YR 1969 UL http://ard.bmj.com/content/28/3/281.abstract AB