[1] Univ Montreal, Hop Sacre Coeur, Dept Med, Montreal, PQ, Canada
[2] Natl Univ Hosp, Rigshosp, Dept Med Endocrinol & Metab, Copenhagen, Denmark
[3] Univ Fed Rio Grande do Sul, Dept Genet, HCPA, Med Genet Serv, Porto Alegre, RS, Brazil
[4] INAGEMP, Porto Alegre, RS, Brazil
[5] Royal Free London NHS Fdn Trust, Lysosomal Storage Disorders Unit, London, England
[6] UCL, London, England
[7] Amicus Therapeut Inc, Philadelphia, PA USA