. "OMIM:618091"^^ . "SPGF29"^^ . _:vb50945758 . _:vb50945758 . . "disease_ontology"^^ . "spermatogenic failure 29"^^ . "A spermatogenic failure characterized by nonobstructive azoospermia or oligozoospermia, immotile sperm, and sperm acrosome and head-neck junction abnormalities that has_material_basis_in homozygous or compound geterozygous mutation in SPINK2 on chromosome 4q12."^^ . _:vb50945758 . _:vb50945758 . "DOID:0111930"^^ . . _:vb50945758 . .