[1] Univ Oklahoma Hlth Sci Ctr, Oklahoma City, OK 73104 USA
[2] US Dept Vet Affairs, Oklahoma City, OK 73111 USA
[3] Hosp Special Surg, New York, NY USA
[4] Univ Alabama Birmingham, Birmingham, AL USA
[5] Birmingham VA Med Ctr, Birmingham, AL USA
[6] VA Hlth Care Syst, Geriatr Res Educ & Clin Ctr, Minneapolis, MN USA
[7] McMaster Univ, Hamilton, ON, Canada
[8] Arthrit Consultants Tidewater, Virginia Beach, VA USA
[9] Univ Colorado, Denver, CO USA
[10] UCLA Hlth, Los Angeles, CA USA
[11] Univ Wisconsin, Madison, WI USA
[12] UC Davis Hlth, Sacramento, CA USA
[13] Univ Colorado, Childrens Hosp Colorado, Sch Med, Aurora, CO USA
[14] Case Western Reserve Univ, Metrohlth, Cleveland, OH USA
[15] Tufts Univ, Boston, MA USA
[16] Cleveland Clin Fdn, Cleveland, OH USA
[17] Brigham & Womens Hosp, Boston, MA USA
[18] UMass Mem Hlth, Worcester, MA USA
[19] UMass Chan Med Sch, Worcester, MA USA
[20] Univ Minnesota, Minneapolis, MN USA
[21] Amer Coll Rheumatol, Atlanta, GA USA
[22] VA Puget Sound Hlth Care Syst, Seattle, WA USA
[23] Univ Washington, Sch Med, Seattle, WA USA
[24] ECRI Inst, Plymouth Meeting, PA USA