title: Too much Sonic, too few neurons.
authors.affiliation: Sloan-Kettering Institute for Cancer Research, Developmental Biology Program and Department of Neurosurgery, 1275 York Avenue, New York, New York 10065, USA. fasanoc@mskcc.org
authors.forename: Christopher A
authors.initials: CA
authors.lastname: Fasano
authors.forename: Lorenz
authors.initials: L
authors.lastname: Studer
mesh_terms: D053823:Hedgehog Proteins / Q000502:physiology*; D006801:Humans; D008636:Mesencephalon / Q000166:cytology / Q000502:physiology*; D055495:Neurogenesis / Q000502:physiology*; D009474:Neurons / Q000166:cytology / Q000502:physiology*; D015398:Signal Transduction / Q000502:physiology; D055153:Stem Cell Niche / Q000166:cytology / Q000502:physiology*; D013234:Stem Cells / Q000166:cytology / Q000502:physiology
chemical_list: D053823:Hedgehog Proteins