. _:vb50946231 . . "SPGF48"^^ . _:vb50946231 . "OMIM:619108"^^ . "disease_ontology"^^ . "An azoospermia characterized by impaired spermatogenesis, primarily occurring at meiosis that has_material_basis_in homozygous or compound heterozygous mutation in M1AP on chromosome 2p13.1."^^ . . "DOID:0112176"^^ . "spermatogenic failure 48"^^ . _:vb50946231 . _:vb50946231 . . _:vb50946231 .