Noonan SyndromeLEOPARD SyndromeProtein Tyrosine Phosphatase, Non-Receptor Type 11Genes, rasras ProteinsSOS1 ProteinSyndromeMutationCostello SyndromeFaciesLoose Anagen Hair SyndromeMutation, MissensePulmonary Valve StenosisEyebrowsPoint MutationAbnormalities, MultipleGerm-Line MutationProto-Oncogene Proteins p21(ras)Failure to ThriveProtein Tyrosine PhosphatasesCherubismSkin AbnormalitiesCraniofacial AbnormalitiesDNA Mutational AnalysisEctodermal DysplasiaGenes, Neurofibromatosis 1Oncogene Protein p21(ras)Sexual DevelopmentBezoarsHeart Defects, CongenitalLeukemia, Myelomonocytic, JuvenileDiagnostic Techniques, EndocrineProto-Oncogene Proteins c-rafCardiomyopathy, HypertrophicNeurofibromatosis 1PhenotypeIntracellular Signaling Peptides and ProteinsLeukemia, Myelomonocytic, ChronicExons