Homerton University, London, United Kingdom
Royal London Hospital, Barts Health NHS Trust, London, United Kingdom
King's College Hospital, London, United Kingdom
National Center for Child Health and Development, Setagaya-ku, Tokyo, Japan
Children's Healthcare of Atlanta-Egleston, Atlanta, Georgia, United States
University Hospitals Rainbow Babies and Children's Hospital, Cleveland, Ohio, United States
Pfizer Investigational Site, Bogota, Cundinamarca, Colombia
Lekarna Pod Platany, Praha, Czechia
Unimed Medical Centre, Plovdiv, Bulgaria
L.K.N. Arthrocentrum, s.r.o., Hlucin, Czechia
Corporacion Gihema, San Jose, Costa Rica
Hospital Metropolitano, Sede San Jose, San Jose, Costa Rica
Hospital Seberang Jaya, Seberang Jaya, Pulau Pinang, Malaysia
Cairo University Hospital, Abu El Rish Hospital, Cairo, Egypt
Abu Elrish Children Hospital, Cairo, Egypt
Egyptian Thalassemia Association (satellite site), Cairo, Egypt
ADVA Clinical Research, Inglewood, California, United States
Hope Clinical Research, Canoga Park, California, United States
Gastroenterology Consultants P.C., Roswell, Georgia, United States
Pfizer Investigational Site, Seoul, Korea, Republic of
Hospital Universitario Valle de Hebrón, Barcelona, Spain
Hospital Ramon y Cajal, Madrid, Spain
Centro médico Imbanaco, Cali, Colombia