_:vb50939832 . "SPGF20"@en . _:vb50939832 . "DOID:0070166"^^ . "disease_ontology"^^ . . _:vb50939832 . . "OMIM:617593"^^ . _:vb50939832 . _:vb50939832 . . . "A male infertility characterized by autosomal recessive inheritance of sperm flagellar morphological abnormalities that has_material_basis_in mutation in the CFAP44 gene on chromosome 3q13."^^ . "spermatogenic failure 20"^^ .