Kaiser Permanente Center for Health Research, Hawaii, Honolulu, Hawaii, United States
National Institutes of Health Clinical Center, 9000 Rockville Pike, Bethesda, Maryland, United States
University of Washington, Seattle, Washington, United States
University of Alabama at Birmingham, Birmingham, Alabama, United States
National Heart, Lung and Blood Institute (NHLBI), Bethesda, Maryland, United States
Duke University Medical Center, Durham, North Carolina, United States
Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States
Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, United States
Pennington Biomedical Research Center, LSU System, Baton Rouge, Louisiana, United States
National Institutes of Health Clinical Center, 9000 Rockville Pike, Bethesda, Maryland, United States