1. From The Miriam Hospital, Alpert Medical School of Brown University, Providence, Rhode Island; Harvard T.H. Chan School of Public Health and Massachusetts General Hospital, Boston, Massachusetts; University of Cincinnati College of Medicine, Cincinnati, Ohio; Johns Hopkins Hospital, Baltimore, Maryland; University of North Carolina at Chapel Hill, Chapel Hill, North Carolina; Birmingham Veterans Affairs Medical Center, Birmingham, Alabama;
2. National Institute of Allergy and Infectious Diseases, Bethesda, Maryland; West Virginia University School of Medicine, Morgantown, West Virginia; University of Puerto Rico, San Juan, Puerto Rico; Weill Cornell Medical College, New York, New York; and Gilead Sciences, Foster City, California.