Montreal Children's Hospital, Montréal, Canada
Manchester University, Manchester, United Kingdom
New York-Presbyterian, New York, New York, United States
University of Pennsylvania, Philadelphia, Pennsylvania, United States
University of Texas at Houston, Houston, Texas, United States
Hospital das Clinicas da Universidade Federal de Minas Gerais (UFMG), Minas Gerais, Brazil
Benioff Children's Hospital, Oakland, California, United States
Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, Brazil
Great Ormond Street Hospital, London, United Kingdom