A Noonan syndrome that has_material_basis_in heterozygous mutation in the SOS1 gene on chromosome 2p22. [ http://purl.obolibrary.org/obo/ECO_0007645 url:https://www.ncbi.nlm.nih.gov/pubmed/19438935 ]
Synonyms: NS4
This is just here as a test because I lose it