1. Laboratory for Molecular Diagnosis Center for Human Genetics, KU Leuven Leuven Belgium
2. Centro de Genetica Medica Jacinto de Magalhaes, Centro Hospitalar Universitário de São João Porto Portugal
3. Centro de Referência de Doenças Hereditárias do Metabolismo, Centro Hospitalar Universitário de São João Porto Portugal
4. CNR, Institute for Polymers, Composites and Biomaterials (IPCB) Catania Italy
5. Department of Pediatrics Center for Metabolic Diseases, University Hospitals Leuven Leuven Belgium
6. De Duve Institute, UCLouvain Brussels Belgium
7. Univ. Lille, CNRS, UMR 8576, UGSF, Unité de Glycobiologie Structurale et Fonctionnelle Lille France