Children's Hospital of Atlanta at Egleston, Emory University, Atlanta, Georgia, United States
Mott Children's Hospital, University of Michigan Health System, Ann Arbor, Michigan, United States
The Children's Hospital, University of Colorado School of Medicine, Denver, Colorado, United States
University of California, Los Angeles-Westwood, Los Angeles, California, United States
Cedars-Sinai Medical Center, Los Angeles, California, United States
University of California, Los Angeles-Harbor, Torrance, California, United States
Gastrointestinal Associates, Knoxville, Tennessee, United States
Mayo Clinic Scottsdale, Scottsdale, Arizona, United States
University of Arizona, VAMC, Tucson, Arizona, United States
US Surgical, Norwalk, Connecticut, United States
University Pittsburgh Medical Center, Pittsburgh, Pennsylvania, United States
US Surgical, Norwalk, Connecticut, United States