_:vb50945740 . _:vb50945740 . "A spermatogenic failure characterized by spermatozoa showing anomalies of the head, acrosome, and nucleus of the sperm resulting in reduced fertility that has_material_basis_in heterozygous mutation in PPP2R3C on chromosome 14q13.2."^^ . "disease_ontology"^^ . . . . "OMIM:618420"^^ . "spermatogenic failure 36"^^ . _:vb50945740 . "DOID:0111921"^^ . _:vb50945740 . . _:vb50945740 . "SPGF36"^^ .