1. Department of Pediatrics and Neonatology , Centro Hospitalar de Trás-Os-Montes e Alto Douro , Vila Real , Portugal
2. Department of Pediatrics , Unidade Local de Saúde do Alto Minho , Viana do Castelo , Portugal
3. Pediatric Endocrinology and Diabetology Unit , Hospital de Braga , Braga , Portugal
4. Department of Endocrinology , Hospital de Braga , Braga , Portugal
5. School of Medicine , University of Minho , Braga , Portugal