Washington University School of Medicine, St. Louis, Missouri, United States
St. Louis Children's Hospital, St. Louis, Missouri, United States
Washington University/Barnes Jewish Hospital, Saint Louis, Missouri, United States
University of Utah, Salt Lake City, Utah, United States
Intermountain Medical Center, Salt Lake City, Utah, United States
Rush University Medical Center, Chicago, Illinois, United States
Children's Memorial Hospital, Chicago, Illinois, United States
All Children's Research Institute, Inc., Saint Petersburg, Florida, United States
Children's Hospital and Research Center at Oakland, Oakland, California, United States
Washington University School of Medicine, St. Louis, Missouri, United States
Washington University School of Medicine, St. Louis, Missouri, United States
University of Miami Hospital/Sylvester, Miami, Florida, United States
Johns Hopkins University, Baltimore, Maryland, United States
St. Louis Nutrition Project, Blantyre, Malawi
University of Malawi College of Medicine, Blantyre, Malawi