[1] Univ Valencia, Res Fdn Hosp Clin, Lab Genet Studies, E-46003 Valencia, Spain
[2] Univ Valencia, Hosp Clin, Serv Endocrinol, E-46003 Valencia, Spain
[3] Univ Valencia, Hosp Clin, Med Interna Serv, E-46003 Valencia, Spain
[4] Hosp Rio Hortega, Med Interna Serv, Valladolid, Spain