[1] Washington State Univ, Spokane, WA USA
[2] Univ Rochester, Med Ctr, Rochester, NY 14642 USA
[3] Univ Rochester, Rochester, NY USA
[4] Univ Michigan, Sch Med, Div Rheumatol, Ann Arbor, MI 48109 USA
[5] Univ Toledo, Dept Med & Publ Hlth, 2801 W Bancroft St, Toledo, OH 43606 USA