title: Differences in the biological and immunological activities of human chorionic gonadotrophin after the removal of sialic acid by enzymic hydrolysis.
mesh_terms: D000818:Animals; D001001:Anura; D001681:Biological Assay; D006063:Chorionic Gonadotropin / Q000502:physiology*; D003016:Clostridium perfringens / Q000201:enzymology; D006801:Humans; D007118:Immunoassay; D066298:In Vitro Techniques; D009438:Neuraminic Acids / Q000378:metabolism; D009439:Neuraminidase / Q000378:metabolism*
chemical_list: D006063:Chorionic Gonadotropin; D009438:Neuraminic Acids; D009439:Neuraminidase