. "DOID:0111923"^^ . . "A spermatogenic failure characterized by multiple morphologic abnormalities of the flagella resulting in severly impaired sperm progressive motility and infertility that has_material_basis_in homozygous or compound heterozygous mutation in TTC29 on chromosome 4q31.22."^^ . _:vb50945744 . _:vb50945744 . _:vb50945744 . "SPGF42"^^ . "OMIM:618745"^^ . "disease_ontology"^^ . _:vb50945744 . _:vb50945744 . . . "spermatogenic failure 42"^^ .