RT Journal Article SR Electronic T1 Progressive muscle weakness: More there than meets the eye JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 385 OP 391 DO 10.3949/ccjm.78a.10116 VO 78 IS 6 A1 Siwar Albashir A1 Leann Olansky A1 Madhu Sasidhar YR 2011 UL http://www.ccjm.org/content/78/6/385.abstract AB