_:vb50945628 . _:vb50945628 "A congenital bilateral absence of vas deferens that has_material_basis_in mutation in ADGRG2 on chromosome Xp22.13."^^ . _:vb50945628 . _:vb50945628 "url:https://pubmed.ncbi.nlm.nih.gov/27476656/"^^ . _:vb50945628 . _:vb50945628 . _:vb50945628 .