[1] NIAMSD, NIH, Bldg 10 CRC,Room 4-1339,10 Ctr Dr, Bethesda, MD 20892 USA
[2] Oregon Hlth & Sci Univ, Portland, OR 97201 USA
[3] Amer Univ Beirut, Beirut, Lebanon
[4] McMaster Univ, Hamilton, ON, Canada
[5] Univ Calif San Francisco, San Francisco, CA 94143 USA
[6] Brigham & Womens Hosp, 75 Francis St, Boston, MA 02115 USA
[7] Univ Wisconsin, Madison, WI 53706 USA
[8] Arthrit & Rheumatism Associates, Washington, DC USA
[9] Childrens Hosp Philadelphia, Philadelphia, PA 19104 USA
[10] Univ Penn, Philadelphia, PA 19104 USA
[11] Univ Toronto, Toronto, ON, Canada
[12] Univ Mississippi, Med Ctr, Jackson, MS USA
[13] Univ Alberta, Edmonton, AB, Canada
[14] Amer Coll Rheumatol, 60 Execut Pk S,Suite 150, Atlanta, GA 30329 USA
[15] RPT, Vancouver, BC, Canada
[16] Hosp Special Surg, 535 E 70th St, New York, NY 10021 USA
[17] Cedars Sinai Med Ctr, Beverly Hills, CA USA
[18] VA Long Beach Med Ctr, Long Beach, CA USA
[19] Univ Calif Irvine, Irvine, CA USA
[20] Legacy Devers Eye Inst, Portland, OR USA
[21] Univ Massachusetts, Worcester, MA 01605 USA
[22] Univ Ghent, B-9000 Ghent, Belgium
[23] Univ Calif Los Angeles, Los Angeles, CA USA
[24] Univ Texas Hlth Sci Ctr Houston, Houston, TX 77030 USA
[25] Denver VA Med Ctr, Denver, CO USA
[26] Univ Colorado, Aurora, CO USA