[1] Ullevaal Univ Hosp, Fac Div, Fac Med, NO-0316 Oslo, Norway
[2] Ullevaal Univ Hosp, Dept Med Genet, NO-0407 Oslo, Norway
[3] Ullevaal Univ Hosp, Rikshosp, Radium Hosp Med Ctr, Inst Canc Res,Dept Biochem, NO-0310 Oslo, Norway
[4] Wellcome Trust Sanger Inst, Canc Genome Project, Cambridge CB10 1SA, England
[5] Gothenburg Univ, Queen Silvia Childrens Hosp, S-41685 Gothenburg, Sweden
[6] Ullevaal Univ Hosp, Dept Neurol, Sect Neurophysiol, NO-0407 Oslo, Norway
[7] Ullevaal Univ Hosp, Dept Neuroradiol, NO-0407 Oslo, Norway
[8] Gothenburg Univ, Sahlgrens Univ Hosp, Dept Clin Genet, S-41685 Gothenburg, Sweden
[9] Univ Witwatersrand, ZA-2000 Johannesburg, South Africa
[10] Natl Hlth Lab Serv, Div Human Genet, ZA-2000 Johannesburg, South Africa
[11] Cambridge Inst Med Res, Cambridge CB2 0XY, England
[12] Womens & Childrens Hosp, Dept Med Genet, Neurogenet Lab, Adelaide, SA 5006, Australia
[13] Hunter Genet & Univ Newcastle, Newcastle, NSW 2300, Australia
[14] Greenwood Genet Ctr, JC Self Res Inst Genet, Greenwood, SC 29646 USA
[15] Ullevaal Univ Hosp, Dept Pediat, NO-0407 Oslo, Norway