Noonan SyndromeLEOPARD SyndromePhenotypeProtein Tyrosine Phosphatase, Non-Receptor Type 11GenotypeSOS1 ProteinSyndromeMutationCostello SyndromeFaciesLoose Anagen Hair SyndromeDNA Mutational AnalysisPulmonary Valve StenosisEyebrowsMutation, MissenseFrasier SyndromeAbnormalities, MultipleFailure to ThriveProtein Tyrosine PhosphatasesCherubismCraniofacial AbnormalitiesSkin AbnormalitiesPedigreeEctodermal DysplasiaSexual DevelopmentBezoarsGenes, Neurofibromatosis 1Heart Defects, CongenitalGerm-Line MutationLeukemia, Myelomonocytic, JuvenileExonsNiemann-Pick DiseasesPolymorphism, GeneticDiagnostic Techniques, Endocrineras ProteinsGenetic Association StudiesNeurofibromatosis 1Cardiomyopathy, HypertrophicAge of OnsetIntracellular Signaling Peptides and ProteinsCodon, NonsenseAlleles