RT Journal Article SR Electronic T1 Myositis Ossificans Progressiva JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP 267 OP 272 DO 10.1136/ard.24.3.267 VO 24 IS 3 A1 Fletcher, E. A1 Moss, M. S. YR 1965 UL http://ard.bmj.com/content/24/3/267.abstract AB