1. Department of Pediatric Hand Surgery, Santa Casa de Misericórdia Hospital, Porto Alegre, Brazil
2. Department of Hand Surgery, Hand Surgery Service, Santa Casa de Misericórdia, São Paulo, Brazil
3. Department of Hand Surgery, ABC Medical School, Santo André, Brazil
4. Department of Hand Surgery, Hospital Universitário Madrid Montepríncipe, San Pablo Centro Universitário Unificado University, Boadilla del Monte, Madrid, Spain
5. Department of Pediatric Surgery, Hospital Universitari Vall d'Hebron, Barcelona, Spain