_:vb50946212 . _:vb50946212 . _:vb50946212 "url:https://pubmed.ncbi.nlm.nih.gov/32681648/"^^ . _:vb50946212 . _:vb50946212 . _:vb50946212 "url:https://pubmed.ncbi.nlm.nih.gov/32619401/"^^ . _:vb50946212 . _:vb50946212 "A spermatogenic failure characterized by male infertility due to asthenoteratozoospermia with multiple morphologic abnormalities of the flagella and disorganization of the axonemal and periaxonemal structures that has_material_basis_in homozygous or compound heterozygous mutation in DNAH8 on chromosome 6p21.2."^^ .