Albert D A, Debois L K, Lu K F
Rheumatology Division, Department of Medicine, University of Chicago, Chicago, Illinois (D.A.L.), Rheumatology Division, Department of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania(L.K.L.D., K.F.L.).
J Clin Rheumatol. 1998 Apr;4(2):57-62. doi: 10.1097/00124743-199804000-00004.