_:vb50946526 . _:vb50946526 . _:vb50946526 . _:vb50946526 "url:https://pubmed.ncbi.nlm.nih.gov/28548327/"^^ . _:vb50946526 . _:vb50946526 . _:vb50946526 "A spermatogenic failure characterized by male infertility due to asthenozoospermia, with severely reduced sperm motility that has_material_basis_in homozygous or compound heterozygous mutation in SPAG17 on chromosome 1p12."^^ .