RT Journal Article SR Electronic T1 Magnetic resonance imaging criteria to differentiate inclusion body myositis from polymyositis. JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 1892 OP 1892 VO 30 IS 8 A1 Hengstman, Gerald J D YR 2003 UL http://www.jrheum.org/content/30/8/1892.abstract AB