[1] Northern Care Alliance NHS Fdn Trust, Salford, England
[2] Univ Hosp Wurzburg, Wurzburg, Germany
[3] Federico II Univ Hosp, Naples, Italy
[4] Univ Hosp Zurich, Zurich, Switzerland
[5] Univ Zurich, Zurich, Switzerland
[6] Univ Copenhagen, Natl Univ Hosp, Rigshosp, Copenhagen, Denmark
[7] Univ Hosp Munster, Munster, Germany
[8] Royal Free London NHS Fdn Trust, London, England
[9] UCL, London, England
[10] Univ Montreal, Hop Sacre Coeur, Montreal, PQ, Canada
[11] Dalhousie Univ, Halifax, NS, Canada
[12] Royal Melbourne Hosp, Melbourne, Australia
[13] Univ Melbourne, Melbourne, Australia
[14] Cincinnati Childrens Hosp Med Ctr, Cincinnati, OH USA
[15] Fed Univ Rio Grande do Sul UFRGS, Med Genet Serv, Hosp Clin Porto Alegre HCPA, Porto Alegre, RS, Brazil
[16] Fed Univ Rio Grande do Sul UFRGS, Natl Inst Populat Med Genet INAGEMP, Porto Alegre, RS, Brazil
[17] Fdn Estudio Enfermedades Neurometab FESEN, Buenos Aires, Argentina
[18] Amicus Therapeut Inc, Philadelphia, PA USA
[19] Med Univ Vienna, Vienna, Austria