A clinical evaluation of oral hormones as a diagnostic test for pregnancy.
D000293:Adolescent; D000328:Adult; D004997:Ethinyl Estradiol; D005003:Ethisterone; D005260:Female; D006801:Humans; D008875:Middle Aged; D011247:Pregnancy; D011258:Pregnancy Tests
D004997:Ethinyl Estradiol; D005003:Ethisterone