. _:vb50945629 . "disease_ontology"^^ . _:vb50945629 . . _:vb50945630 . _:vb50945630 . _:vb50945629 . _:vb50945630 . "OMIM:277180"^^ . _:vb50945630 . . "autosomal recessive congenital bilateral absence of vas deferens"^^ . "A congenital bilateral absence of vas deferens that has_material_basis_in homozygous or compound heterozygous mutation in CFTR on chromosome 7q31.2."^^ . _:vb50945630 . _:vb50945629 . _:vb50945629 . . "DOID:0111864"^^ .