title: RESEARCH ON FROZEN HUMAN SEMEN: PAST, PRESENT, AND FUTURE.
mesh_terms: D003080:Cold Temperature; D006801:Humans; D007315:Insemination, Artificial; D009584:Nitrogen; D012661:Semen; D012662:Semen Preservation
chemical_list: D009584:Nitrogen
keywords: COLD; INSEMINATION, ARTIFICIAL; NITROGEN; SEMEN