MedStar Washington Hospital Center, Washington, District of Columbia, United States
Carilion Medical Center, Roanoke, Virginia, United States
Emory University, Atlanta, Georgia, United States
Emory University, Atlanta, Georgia, United States
National Institutes of Health Clinical Center, Bethesda, Maryland, United States
National Institutes of Health Clinical Center, Bethesda, Maryland, United States
National Institutes of Health Clinical Center, Bethesda, Maryland, United States
National Institutes of Health Clinical Center, Bethesda, Maryland, United States
National Institutes of Health Clinical Center, Bethesda, Maryland, United States
National Heart, Lung and Blood Institute (NHLBI), Bethesda, Maryland, United States
National Institutes of Health Clinical Center, Bethesda, Maryland, United States
Walter Reed National Military Medical Center, Bethesda, Maryland, United States
National Institutes of Health Clinical Center, Bethesda, Maryland, United States