[1] NHGRI, NIH, Bethesda, MD 20892 USA
[2] NIH, Bldg 10, Bethesda, MD 20892 USA
[3] Johns Hopkins Univ, Sch Med, Rhetimatol, Baltimore, MD USA
[4] Johns Hopkins Univ, Sch Med, Div Rheumatol, Baltimore, MD USA
[5] Univ Texas Houston, McGovern Med Sch, Rheumatol, Houston, TX USA
[6] Northwestern Univ, Feinberg Sch Med, Scleroderma Program, Chicago, IL 60611 USA
[7] Stanford Univ, Sch Med, Immunol & Rheumatol, Palo Alto, CA 94304 USA
[8] Univ Calif San Francisco, San Francisco, CA 94143 USA
[9] Univ Penn, Rheumatol, Philadelphia, PA 19104 USA
[10] Univ Pittsburgh, Med Rheumatol, Pittsburgh, PA USA
[11] Arthrit & Osteoporosis Consultants Carolinas, Rheumatol, Charlotte, NC USA
[12] NYU, Langone Med Ctr, New York, NY USA
[13] Hosp Special Surg, Rheumatol, 535 E 70th St, New York, NY 10021 USA
[14] Robert Wood Johnson Univ, Scleroderma Program, Rheumatol, New Brunswick, NJ USA
[15] Univ Chicago, Rheumatol, Med, Chicago, IL 60637 USA
[16] Univ Michigan, Scleroderma Program, Dept Internal Med, Div Rheumatol, Ann Arbor, MI 48109 USA
[17] Univ Pittsburgh, Pittsburgh, PA USA
[18] Med Univ South Carolina, Dept Publ Hlth Sci, Charleston, SC 29425 USA
[19] Boston Univ, Sch Med, Boston, MA 02118 USA
[20] Tulane Univ, Sch Med, Rheumatol, 1430 Tulane Ave, New Orleans, LA 70112 USA
[21] Univ Michigan, Ann Arbor, MI 48109 USA
[22] George Washington Univ, Rheumatol, Washington, DC USA
[23] Univ Rochester, Med Sch, Sch Med & Dent, Div Allergy Immunol & Rheumatol, Rochester, NY USA
[24] Univ Rochester, Med Sch, Sch Med & Dent, Ctr Musculoskeletal Res, Rochester, NY USA
[25] Univ Alabama Birmingham, Clin Immunol & Rheum, Birmingham, AL USA
[26] Stanford Univ, Med Ctr, Rheumatol, Stanford, CA 94305 USA
[27] Columbia Univ, Rheumatol, New York, NY USA
[28] Univ Calif Los Angeles, David Geffen Sch Med, Los Angeles, CA 90095 USA
[29] Henry Ford Hosp, Rheumatol, Detroit, MI 48202 USA
[30] Med Univ SC, Rheumatol, Charleston, SC USA
[31] Medstar Georgetown Univ Hosp, Rheumatol, Washington, DC USA
[32] Northwestern Univ, Chicago, IL 60611 USA
[33] Univ Calif San Francisco, Rheumatol, San Francisco, CA 94143 USA
[34] Johns Hopkins Univ, Rheum Div, Mason F Lord, Baltimore, MD USA
[35] NHGRI, Inflammatory Dis Sect, NIH, Bethesda, MD 20892 USA
[36] NIAMS, Rheumatol, NIH, Bethesda, MD USA