1 Department of Clinical and Molecular Ophthalmogenetics, The Netherlands Institute for Neuroscience (NIN), Royal Netherlands Academy of Arts and Sciences (KNAW), 1105BA Amsterdam, The Netherlands. Electronic address: s.janssen@nin.knaw.nl.
2 Department of Clinical and Molecular Ophthalmogenetics, The Netherlands Institute for Neuroscience (NIN), Royal Netherlands Academy of Arts and Sciences (KNAW), 1105BA Amsterdam, The Netherlands; Department of Pediatrics and Child Neurology, Center for Neurogenomics and Cognitive Research, VU University Medical Center, Amsterdam, The Netherlands.
3 Department of Pediatrics and Child Neurology, Center for Neurogenomics and Cognitive Research, VU University Medical Center, Amsterdam, The Netherlands.
4 Department of Clinical and Molecular Ophthalmogenetics, The Netherlands Institute for Neuroscience (NIN), Royal Netherlands Academy of Arts and Sciences (KNAW), 1105BA Amsterdam, The Netherlands; Department of Clinical Genetics, Academic Medical Centre (AMC), Amsterdam, The Netherlands.