Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, United States
Children's Hospital Los Angeles, Los Angeles, California, United States
Seattle Children's Hospital, Seattle, Washington, United States
Johns Hopkins Outpatient Center, Baltimore, Maryland, United States
Wilmer Eye Institute at Johns Hopkins University, Baltimore, Maryland, United States
Johns Hopkins Bayview Medical Center, Baltimore, Maryland, United States
Johns Hopkins Hospital, Baltimore, Maryland, United States
Johns Hopkins University School of Medicine, Baltimore, Maryland, United States
Baltimore City Health Department, and Baltimore metropolitan area clinics and health departments, Baltimore, Maryland, United States
University of Texas, Houston, Texas, United States
Johns Hopkins University, Baltimore, Maryland, United States
University of California, San Diego, San Diego, California, United States
New York University Grossman School of Medicine, Brooklyn, New York, United States
University of Alabama Birmingham, Birmingham, Alabama, United States
Johns Hopkins Hospital, Baltimore, Maryland, United States
Johns Hopkins Hospital, Baltimore, Maryland, United States