[1] BioAraba Natl Hlth Res Inst, Rare Dis Res Grp, Mol Epi Genet Lab, Vitoria, Spain
[2] Hosp Univ Cruces, BioCruces Hlth Res Inst, Serv Genet, Baracaldo, Bizkaia, Spain
[3] Araba Univ Hosp, Serv Paediat Neurol, Vitoria, Araba, Spain
[4] Araba Univ Hosp Txagorritxu, Dept Pediat Endocrinol, BioAraba Hlth Res Inst, Vitoria, Araba, Spain