1. From the Medical Faculty of the Charité (S.B., M.K., Y.N., M.G., H.R.T., P.M., A.A., F.C.L.), Experimental and Clinical Research Center, Max-Delbrück Center for Molecular Medicine, and HELIOS Klinikum Berlin-Buch, Berlin, Germany; Prenatal Diagnosis and Medical Genetics Program (D.C.), Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada; Klinik für Kinder und Jugendliche (O.T.) and Institute of Human Genetics (A.R.), University Hospital Erlangen, University of Erlangen-Nürnberg...