Brain Stem NeoplasmsBrain StemPoint MutationMutation, MissenseStem CellsMutationBrain ChemistryFrameshift MutationBrain NeoplasmsBrain InjuriesGerm-Line MutationBrainEvoked Potentials, Auditory, Brain StemBrain MappingBrain Stem InfarctionsPedigreePlant StemsHematopoietic Stem CellsBase SequenceStem Cell TransplantationMagnetic Resonance ImagingNeoplasmsMolecular Sequence DataPancreatic NeoplasmsNeoplastic Stem CellsNeuronsPolymerase Chain ReactionAdult Stem CellsMutation RateExonsImmunohistochemistryHeterozygote