[1] Univ Toronto, Toronto Western Hosp, Mt Sinai Hosp, Schroeder Arthrit Inst, Toronto, ON, Canada
[2] Columbia Univ, Irving Med Ctr, Vagelos Coll Phys & Surg, New York, NY USA
[3] Massachusetts Gen Hosp, Boston, MA USA
[4] Univ Chicago Med, Chicago, IL USA
[5] Johns Hopkins Univ, Sch Med, Baltimore, MD USA
[6] Univ Penn, Philadelphia, PA USA
[7] Univ Michigan, Ann Arbor, MI USA
[8] McMaster Univ, Hamilton, ON, Canada
[9] Univ Pittsburgh, Pittsburgh, PA USA
[10] Univ Texas Hlth Sci Ctr Houston, Bellaire, TX USA
[11] Yale Sch Med, New Haven, CT USA
[12] St Lukes Univ Hlth Network, Bethlehem, PA USA
[13] Brigham & Womens Hosp, Boston, MA USA
[14] Vanderbilt Univ, Med Ctr, Nashville, TN USA
[15] Univ Wisconsin, Sch Med & Publ Hlth, Madison, WI USA
[16] Univ Virginia, Sch Med, Charlottesville, VA USA
[17] Hawaii Pacific Hlth, Honolulu, HI USA
[18] Univ Kansas, Med Ctr, Kansas City, MO USA
[19] St Francis Hlth Syst, Tulsa, OK USA
[20] Univ Utah, Salt Lake City, UT USA
[21] Albany Med Coll, Albany, NY USA
[22] Thomas Jefferson Univ Hosp, Philadelphia, PA USA
[23] Millennium Phys, Huntsville, TX USA
[24] Baylor Coll Med, Houston, TX USA
[25] Northwestern Univ, Chicago, IL USA
[26] Mayo Clin, Rochester, MN USA
[27] Cedars Sinai, Los Angeles, CA USA
[28] UT Southwestern Med Ctr, Dallas, TX USA
[29] Univ Colorado, Aurora, CO USA
[30] New York Univ Langone Hlth, New York, NY USA
[31] Hosp Special Surg, Weill Cornell Med, New York, NY USA
[32] Univ Washington, Seattle, WA USA
[33] Natl Jewish Hlth, Denver, CO USA
[34] Amer Coll Rheumatol, Atlanta, GA USA
[35] Univ Oklahoma, Oklahoma City, OK USA
[36] Ctr Clin Evidence & Guidelines, ECRI, Plymouth Meeting, PA USA
[37] Oregon Hlth & Sci Univ, Portland, OR USA