[1] Univ Calif Los Angeles, Dept Med, Los Angeles, CA USA
[2] Univ Texas SouthWestern Med Ctr, Metroplex Clin Res Ctr, Dept Internal Med, Dallas, TX USA
[3] Organizac Medica Invest, Rheumatol, Buenos Aires, DF, Argentina
[4] Desert Med Adv, Rheumatol, Palm Desert, CA USA
[5] Pfizer Inc, Inflammat & Immunol, Groton, CT USA
[6] Pfizer Inc, Inflammat & Immunol, Collegeville, PA USA
[7] Pfizer Inc, Inflammat & Immunol, New York, NY USA
[8] Univ Debrecen, Div Rheumatol, Fac Med, Debrecen, Hungary