[1] Washington Univ, Sch Med, Div Rheumatol, St Louis, MO USA
[2] BJC Med Grp, Rheumatol & Internal Med Associates, St Louis, MO USA
[3] Washington Univ, Sch Med, Clin Rheumatol Res Program, St Louis, MO USA
[4] Barnes Jewish Coll, Goldfarb Sch Nursing, Adult Gerontol Primary Care Nurse Practitioner Pro, St Louis, MO USA
[5] Washington Univ, Sch Med, Clin Operat, Rheumatol, St Louis, MO USA
[6] Barnes Jewish Coll, Goldfarb Sch Nursing, Adult Gerontol Primary Care Nurse Practitioner Pro, 4483 Duncan Ave, St Louis, MO 63110 USA