[1] Kings Coll London, Blood Brain Barrier Grp, London, England
[2] Univ Coll Dublin, Med, Belfield, Dublin, Ireland
[3] CIBERER, Hosp St Joan de Deu, Dept Neurol, Neurometab Unit, Barcelona, Spain
[4] MetabERN, Barcelona, Spain
[5] Chiesi Farmaceut SPA, Parma, Italy
[6] Udine Univ Hosp, Reg Coordinating Ctr Rare Dis, Udine, Italy
[7] Univ Padua, Dept Womens & Childrens Hlth, Lab Diag & Therapy Lysosomal Disorders, I-35128 Padua, Italy
[8] Ist Ric Pediat Citta Speranza, Padua, Italy
[9] Univ Modena & Reggio Emilia, Dept Life Sci, Nanotech Lab, Via Campi 103, I-41124 Modena, Italy