[1] Univ Birmingham, Sch Clin & Expt Med, Ctr Endocrinol Diabet & Metab, Birmingham, W Midlands, England
[2] Univ Hosp Santiago de Compostela, Fdn Publ Gellega Med Genom FPMG, Santiago De Compostela, Spain
[3] Univ Santiago de Compostela, Sch Med, Dept Physiol, Santiago De Compostela, Spain