[1] Hosp Univ La Princesa, Dept Internal Med, Adult Syndrome Outpatient Unit, Madrid 28006, Spain
[2] Hosp Univ La Princesa, Inst Invest Sanitaria La Princesa, Madrid 28006, Spain
[3] Hosp del Mar Med Res Inst, Res Programme Biomed Informat, Barcelona 08003, Spain
[4] Univ Pompeu Fabra, Dept Expt & Hlth Sci, Barcelona 08003, Spain
[5] Hosp Univ 12 Octubre, Dept Psychiat, Res Inst I 12, Madrid 28041, Spain
[6] Down Espana Huesca, Huesca 22005, Spain
[7] Inst Hispalense Pediat, Unidad Neuropediat, Seville 41013, Spain
[8] Univ Cantabria, Univ Hosp Marques de Valdecilla, Dept Pediat, Santander 39008, Spain
[9] Down Espana, Madrid 28043, Spain
[10] Univ Autonoma Barcelona, Hosp Santa Creu & St Pau, Biomed Res Inst St Pau, St Pau Memory Unit,Dept Neurol, Barcelona 08025, Spain
[11] Fundacio Catalana Sindrome Down, Barcelona Down Med Ctr, Barcelona 08029, Spain
[12] Emory Univ, Rollins Sch Publ Hlth, Dept Epidemiol, Atlanta, GA 30322 USA
[13] Emory Univ, Rollins Sch Publ Hlth, Gangarosa Dept Environm Hlth, Atlanta, GA 30322 USA
[14] Emory Univ, Sch Med, Dept Human Genet, Atlanta, GA 30322 USA
[15] Kings Coll London, Inst Psychiat Psychol & Neurosci, Dept Forens & Neurodev Sci, London SE5 8AF, England
[16] London Down Syndrome LonDownS Consortium, London, England
[17] South London & Maudsley NHS Fdn Trust, London SE5 8AF, England
[18] Hosp del Mar Med Res Inst, Neurosci Res Programme, Barcelona 08003, Spain
[19] Biomed Res Networking Ctr Physiopathol Obes & Nut, Barcelona 08003, Spain
[20] Barcelona Inst Sci & Technol, Ctr Genom Regulat, Barcelona 08003, Spain
[21] Biomed Res Networking Ctr Rare Dis CIBERER, Barcelona 08003, Spain