[1] Birmingham Childrens Hosp, Dept Paediat Neurosurg, Birmingham B4 6NH, W Midlands, England
[2] Lurie Childrens Hosp Chicago, Div Neurosurg, Chicago, IL 60611 USA
[3] Lurie Childrens Hosp Chicago, Div Genet Birth Defects & Metab, Chicago, IL 60611 USA
[4] HCPA, Med Genet Serv, BR-90035903 Porto Alegre, RS, Brazil
[5] Univ Fed Rio Grande do Sul, Dept Genet, BR-90035903 Porto Alegre, RS, Brazil
[6] Natl Inst Populat Med Genet, INAGEMP, BR-90035903 Porto Alegre, RS, Brazil
[7] Fiocruz MS, Inst Saude Mulher Crianca & Adolescente Fernandes, Ctr Genet Med, Rio De Janeiro, Brazil
[8] NHS Fdn Trust, Cent Manchester Univ Hosp, Manchester Acad Hlth Sci Ctr, St Marys Hosp, Manchester, Lancs, England
[9] Johannes Gutenberg Univ Mainz, Dept Pediat & Adolescent Med, Univ Med Ctr, Mainz, Germany
[10] Childrens Hosp, Dept Diagnost Imaging, Oakland, CA 94609 USA
[11] Res Ctr Oakland, Oakland, CA 94609 USA
[12] Lurie Childrens Hosp Chicago, Dept Med Imaging, Chicago, IL 60611 USA
[13] Middle Rhine Clin, Dept Anesthesiol Intens Care Emergency Med & Pain, D-56068 Koblenz, Germany
[14] Lurie Childrens Hosp Chicago, Div Anesthesiol, Chicago, IL 60611 USA
[15] Seattle Childrens Hosp, Dept Orthoped & Sports Med, Seattle, WA 98105 USA