New methods of pregnancy testing in adolescent girls.
D000293:Adolescent; D000818:Animals; D006063:Chorionic Gonadotropin / Q000032:analysis* / Q000097:blood / Q000652:urine; D005260:Female; D006801:Humans; D051379:Mice; D011247:Pregnancy; D011258:Pregnancy Tests / Q000379:methods*; D011259:Pregnancy Tests, Immunologic; D011817:Rabbits; D011863:Radioimmunoassay; D011869:Radioligand Assay
D006063:Chorionic Gonadotropin