[1] Natl Inst Rheumatism & Physiotherapy, Bethesda, MD USA
[2] NIAMSD, Bethesda, MD 20892 USA
[3] Univ Utah, Salt Lake City, UT USA
[4] Johns Hopkins Univ Hosp, Baltimore, MD 21287 USA
[5] Univ Texas Houston, McGovern Med Sch, Div Rheumatol & Clin Immunogenet, Houston, TX USA
[6] NHGRI, Bethesda, MD 20892 USA
[7] Univ Pittsburgh, Pittsburgh, PA USA
[8] Univ Pittsburg, Sch Med, Pittsburgh, PA USA
[9] Med Univ South Carolina, Charleston, SC 29425 USA
[10] Med Univ South Carolina, Div Rheumatol, Charleston, SC 29425 USA
[11] Georgetown Univ, Washington, DC USA
[12] Northwestern Univ, Chicago, IL 60611 USA
[13] Rutgers RWJ Med Sch, South Plainfield, NJ USA
[14] New Orleans Scleroderma & Sarcoidosis Patient Car, New Orleans, LA USA
[15] Tulane Univ, Sch Med, Univ Med Ctr, Comprehens Pulm Hypertens Ctr, 1430 Tulane Ave, New Orleans, LA 70112 USA
[16] Univ Michigan, Dept Rheumatol, Ann Arbor, MI 48109 USA
[17] Univ Michigan, Dept Med, Ann Arbor, MI 48109 USA
[18] Hosp Special Surg, 535 E 70th St, New York, NY 10021 USA
[19] Univ Calif San Francisco, San Francisco, CA 94143 USA
[20] Arthrit & Osteoporosis Consultants Carolinas, Charlotte, NC USA
[21] Univ Penn, Philadelphia, PA 19104 USA
[22] Columbia Univ, Div Rheumatol, New York, NY USA
[23] Univ Alabama Birmingham, Birmingham, AL USA
[24] George Washington Univ, Georgetown, DC USA
[25] Stanford Univ, Dept Med, Div Rheumatol & Immunol, Stanford, CA 94305 USA
[26] Stanford Univ, Palo Alto, CA 94304 USA
[27] Univ Calif Los Angeles, Dept Med, Div Rheumatol, Los Angeles, CA 90024 USA
[28] Univ Chicago, Pritzker Sch Med, Chicago, IL 60637 USA
[29] Boston Univ, Med Ctr, Boston, MA USA
[30] NYU, Langone Med Ctr, New York, NY USA
[31] Univ Rochester, Med Ctr, Rochester, NY 14642 USA
[32] NIH, Ctr Mol Modeling, Ctr Informat Technol, Bldg 10, Bethesda, MD 20892 USA
[33] Johns Hopkins Univ, Div Rheumatol, Baltimore, MD USA
[34] NIH, Bldg 10, Bethesda, MD 20892 USA
[35] UCSF, San Francisco, CA USA
[36] Univ Maryland, College Pk, MD 20742 USA