1. Department of Pediatric Orthopedic and Trauma Surgery, Hospital Sant Joan de Déu
2. Department of Hand Surgery, Kaplan Institute
3. Department of Orthopedic and Trauma Surgery, Hospital de Mataró, Carr. de Cirera, Barcelona, Spain
4. Department of Orthopedic and Trauma Surgery, Hospital Universitario Departamental de Nariño, Pasto, Colombia