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Abnormalities, Multiple
Mental Retardation
Congenital Heart Defects
Osteochondrodysplasias
Developmental Disabilities
Skin Abnormalities
Failure to Thrive
Polyhydramnios
Infants
Proto-Oncogene Proteins p21(ras)
Base Sequence
Germ-Line Mutation
Phenotype
Facies
Genetic Predisposition to Disease
Face
Cohort Studies
Magnetic Resonance Imaging
Genes, ras
DNA Mutational Analysis
Co-Publications
21
12
7
5
2
1
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