RT Journal Article SR Electronic T1 Difficulties in Diagnosing and Treating Polymyalgia Rheumatica JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 115 OP 115 VO 56 IS 2 A2 William S. Wilke YR 1989 UL http://www.ccjm.org/content/56/2/115.1.abstract AB