[1] Univ Quebec, Ctr Hosp, Ste Foy, PQ G1V 2M3, Canada
[2] Univ Alberta, Edmonton, AB, Canada
[3] Hop Cochin, F-75674 Paris, France
[4] Pontificia Univ Catolica, Sch Med, Porto Alegre, RS, Brazil
[5] Hlth Res Oklahoma, Oklahoma City, OK USA
[6] Ctr Med Privade Reumatol, San Miguel De Tucuman, Argentina
[7] St Augustines Med Ctr, Durban, South Africa
[8] Ctr Investigac Noroeste, Tijuana, Mexico
[9] Bristol Myers Squibb Co, Princeton, NJ USA
[10] Bristol Myers Squibb Co, Hopewell Jct, NY USA
[11] Bristol Myers Squibb Co, Shanghai, Peoples R China
[12] Denver Arthritis Clin, Denver, CO USA