Early pregnancy tests.
Collins
W P
WP
Department of Obstetrics and Gynaecology, King's College School of Medicine and Dentistry, Denmark Hill, London.
D006063:Chorionic Gonadotropin / Q000097:blood; D005260:Female; D006801:Humans; D011247:Pregnancy; D011258:Pregnancy Tests / Q000379:methods*; D011259:Pregnancy Tests, Immunologic / Q000379:methods; D014463:Ultrasonography
D006063:Chorionic Gonadotropin