Musculoskeletal features in systemic lupus erythematosus and their relationship with disability.
Murphy
N G
NG
Division of Rheumatology, Department of Medicine, University of Pennsylvania, School of Medicine, Philadelphia, Pennsylvania 19104.
Koolvisoot
A
A
Schumacher
R
R
Von Feldt
J M
JM
Callegari
P E
PE