title: Early detection of pregnancy.
mesh_terms: D000818:Animals; D006063:Chorionic Gonadotropin / Q000097:blood*; D018997:Chorionic Gonadotropin, beta Subunit, Human; D005260:Female; D006801:Humans; D051379:Mice; D008875:Middle Aged; D010446:Peptide Fragments / Q000097:blood*; D011247:Pregnancy; D011259:Pregnancy Tests, Immunologic; D011817:Rabbits; D011863:Radioimmunoassay; D011898:Ranidae; D013997:Time Factors
chemical_list: D006063:Chorionic Gonadotropin; D018997:Chorionic Gonadotropin, beta Subunit, Human; D010446:Peptide Fragments