[1] Rhein Westfal TH Aachen, Dept Human Genet, Univ Hosp, D-52076 Aachen, Germany
[2] Monash Med Ctr, Dept Genet & Mol Pathol, Clayton, Vic 3168, Australia
[3] Hosp Univ La Paz, CIBERER, IdiPAZ, INGEMM,Inst Genet Med Mol,ISCII, Madrid, Spain
[4] Univ Southampton, Salisbury Hlth Care Trust, Wessex Reg Genet Lab, Dept Epigenet,Fac Med, Salisbury, Wilts, England
[5] Univ Cambridge, Sch Clin, Addenbrookes Hosp Treatment Ctr, Dept Med Genet, Cambridge, England
[6] Univ Amsterdam, Acad Med Ctr, Dept Clin Genet, NL-1105 AZ Amsterdam, Netherlands
[7] Univ Paris 06, INSERM, U938, Hop Trousseau, Paris, France
[8] Univ Med Ctr, Ctr Paediat & Adolescent Med, Mainz, Germany
[9] Univ Naples 2, Inst Genet & Biophys ABT, Naples, Italy
[10] Univ Southampton, Princess Anne Hosp, Wessex Clin Genet Serv, Dept Human Genet & Genom Med,Fac Med, Southampton, Hants, England
[11] Univ Toronto, Dept Paediat, Toronto, ON M5S 1A1, Canada
[12] Univ Toronto, Hosp Sick Children, Genome Biol Program, Toronto, ON M5G 1X8, Canada
[13] Univ Toronto, Inst Med Sci, Toronto, ON, Canada