[On early prophylaxis of abortion with a gestagenestrogen combination].
D000026:Abortion, Habitual; D000028:Abortion, Induced; D000022:Abortion, Spontaneous; D000033:Abortion, Threatened; D004958:Estradiol; D005260:Female; D006801:Humans; D006908:Hydroxyprogesterones; D011247:Pregnancy
D006908:Hydroxyprogesterones; D004958:Estradiol
ABORTION, HABITUAL; ABORTION, THREATENED; ESTRADIOL; HYDROXYPROGESTERONE