_:vb50944857 . _:vb50944857 . _:vb50944857 "url:https://www.ncbi.nlm.nih.gov/pubmed/16474404"^^ . _:vb50944857 . _:vb50944857 . _:vb50944857 . _:vb50944857 "A cardiofaciocutaneous syndrome that has_material_basis_in heterozygous mutation in KRAS on chromosome 12p12.1."^^ .