National Institutes of Health Clinical Center, 9000 Rockville Pike, Bethesda, Maryland, United States
University of Minnesota, Minneapolis, Minnesota, United States
Mayo Clinic, Rochester, Minnesota, United States
University of Alberta, Edmonton, Alberta, Canada
Vanderbilt University - Pediatric - Vanderbilt Vaccine Research Center, Nashville, Tennessee, United States
Lucile Packard Children's Hospital, Stanford University, Palo Alto, California, United States
University of Chicago, Chicago, Illinois, United States
University of Rochester, Rochester, New York, United States
Cincinnati VA Medical Center, Cincinnati, Ohio, United States
University of Cincinnati, Cincinnati, Ohio, United States
University of Rochester, Rochester, New York, United States
University of Alabama at Birmingham, Birmingham, Alabama, United States
Stanford University School of Medicine, Stanford, California, United States
University of Iowa Hospitals & Clinics, Iowa City, Iowa, United States
Baylor College of Medicine, Houston, Texas, United States
University of Rochester Medical Center: Facility for Evaluation of Flu Vaccines, Rochester, New York, United States
Quintiles Phase I Services - Overland Park, Overland Park, Kansas, United States