title: COMPARATIVE STUDY OF IMMUNOLOGIC AND BIOLOGIC PREGNANCY TESTS IN EARLY PREGNANCY.
mesh_terms: D001688:Biological Products; D005260:Female; D006385:Hemagglutination Inhibition Tests; D006801:Humans; D008863:Microspheres; D011247:Pregnancy; D011258:Pregnancy Tests
chemical_list: D001688:Biological Products
keywords: HEMAGGLUTINATION INHIBITION TESTS; LATEX PARTICLES; PREGNANCY; PREGNANCY TESTS