[1] Inst Rehabil Psicofis, Buenos Aires, DF, Argentina
[2] Org Med Invest, Buenos Aires, DF, Argentina
[3] Clin Sur, Arequipa, Peru
[4] Ctr Invest Clin Morelia, Morelia, Michoacan, Mexico
[5] Clin Anglo Amer, Lima, Peru
[6] Univ Colorado Denver, Dept Med, Denver, CO USA
[7] Hop Lariboisiere, AP HP, Dept Rheumatol, Paris, France
[8] Univ Montreal, Hop Maisonneuve Rosemont, Dept Med, Montreal, PQ, Canada
[9] Seoul Natl Univ Hosp, Dept Internal Med, Div Rheumatol, Seoul, South Korea
[10] Pfizer Inc, Capelle Aan Den Ijssel, Netherlands
[11] Pfizer SLU, Madrid, Spain
[12] Pfizer Ltd, Mumbai, Maharashtra, India
[13] Pfizer Inc, Montreal, PQ, Canada
[14] Pfizer Inc, New York, NY USA
[15] Pfizer Inc, Groton, CT 06340 USA
[16] Pfizer Inc, Lima, Peru