[1] Hosp Univ Cruces, Paediat Endocrinol, CIBERDEM, CIBERER,BIOCRUCES, Plaza Cruces S-N, Baracaldo 48903, Bizkaia, Spain
[2] Hosp Gen Univ Alicante, Paediat Endocrinol, Pintor Baeza 11, Alicante 03010, Spain
[3] HHUU Virgen Rocio, Paediat Endocrinol Unit, Hosp Infantil, Paediat Serv, Avda Marques Luca de Tena S-N, Seville, Spain
[4] Hosp Valle De Hebron, Inst Salud Carlos 3, Paediat Endocrinol Unit, Growth & Dev Res Unit,VHIR,Paediat Serv, Ps Vall dHebron 119-129, Barcelona 08035, Spain
[5] Hosp Infantil La Paz, Paediat Endocrinol, P Castellana 261, Madrid 28046, Spain
[6] Hosp Univ Son Espases, Paediat Endocrinol, Carretera Valldemosa 79, Palma De Mallorca 07010, Spain
[7] Severo Ochoa Univ Hosp, Paediat Endocrinol Unit, Madrid 28911, Spain
[8] Ramon y Cajal Univ Hosp, Paediat Endocrinol & Diabet Unit, Cta Colmenar Viejo 9,100, Madrid 28034, Spain