[1] Hosp Germans Trias i Pujol, Dept Endocrinol & Nutr, Carretera Canyet S-N, Badalona 08916, Spain
[2] Hosp Gen Univ Gregorio Maranon, Dept Endocrinol & Nutr, C Dr Esquerdo 46, Madrid 28007, Spain
[3] Hosp Clin Univ Lozano Blesa, Dept Endocrinol & Nutr, C San Juan Bosco 15, Zaragoza 50009, Spain
[4] Hosp Univ Vall dHebron, Nutr Support Unit, Pg Vall dHebron 119, Barcelona 08035, Spain
[5] Complejo Hosp Univ Ferrol A Coruna, Dept Endocrinol & Nutr, Ave Residencia S-N, Ferrol 15405, Spain
[6] Hosp Clin Univ San Carlos, Dept Endocrinol & Nutr, Madrid 28040, Spain
[7] Univ Complutense Madrid, Fac Med, Madrid 28040, Spain
[8] Inst Invest Sanitaria San Carlos IdISSC, Madrid 28040, Spain
[9] Hosp Gen Univ, Dept Endocrinol & Nutr, Santiago De Compostela 15706, Spain
[10] Inst Nacl Salud Carlos III, CIBERObn, Madrid 28029, Spain
[11] Inst Invest Sanitaria Santiago de Compostela IDIS, Grp Invest Endocrinol Mol, Santiago De Compostela 15706, Spain
[12] Complejo Hosp Univ Navarra, Sect Clin Nutr & Dietet, C Irunlarrea 3, Pamplona 31008, Spain
[13] Hosp Univ Cabuenes, Dept Endocrinol & Nutr, Los Prados 395, Gijon 33394, Spain
[14] Spanish Soc Endocrinol & Nutr, C Villalar 7, Madrid 28001, Spain
[15] Hosp Virgen de la Victoria, Dept Endocrinol & Nutr, Malaga 29010, Spain
[16] Hosp Quiron salud, UMA, Malaga 29010, Spain
[17] Inst Invest Biomed Malaga IBIMA, Malaga 29010, Spain