Stanford Prevention Research Center, Stanford, California, United States
California Pacific Medical Center, San Francisco, California, United States
University of Connecticut Health Center, Farmington, Connecticut, United States
Rheumatology and Internal Medicine Associates of West County, PC, St. Louis, Missouri, United States
Geisinger Medical Center, Danville, Pennsylvania, United States
UAB Arthritis Clinical Intervention Program, Birmingham, Alabama, United States
Center for Health Research, Northwest, Portland, Oregon, United States
University of Maryland School of Medicine - Kernan Hospital, Baltimore, Maryland, United States
UPMC Shadyside, Center for Complementary Medicine, Pittsburgh, Pennsylvania, United States
University of Maryland, Baltimore, Maryland, United States
Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, United States
CENISMI/Robert Reid Cabral Children's Hospital, Santo Domingo, Dominican Republic