New York University Medical Center, New York, New York, United States
St. Barnabas Medical Center, Livingston, New Jersey, United States
Hospital for Joint Diseases, New York, New York, United States
New York University School of Medicine, New York, New York, United States
Louisiana School of Medicine, Dept. of Medicine/Immunology, Shreveport, Louisiana, United States
UCLA Medical Center, Dept. of Rheumatology, Los Angeles, California, United States
University of Chicago Pritzker School of Medicine, Chicago, Illinois, United States
Office of Betty Diamond, M.D., Bronx, New York, United States
North Shore-Long Island Jewish Health System, New Hyde Park, New York, United States
Lenox Hill Hospital, New York, New York, United States
Johns Hopkins Hospital, Baltimore, Maryland, United States
University of Chicago Pritzker School of Medicine, Chicago, Illinois, United States
Univ. of Pittsburgh, Dept. of Rheumatology, Pittsburgh, Pennsylvania, United States