title: Alteration of postcoital examination by systemic medication.
mesh_terms: D002582:Cervix Mucus / Q000032:analysis*; D003075:Coitus; D005260:Female; D005298:Fertility / Q000187:drug effects; D006801:Humans; D008297:Male; D008525:Medroxyprogesterone / Q000494:pharmacology; D008656:Mestranol / Q000494:pharmacology; D009640:Norethindrone / Q000494:pharmacology; D011247:Pregnancy; D011374:Progesterone / Q000494:pharmacology; D013094:Spermatozoa / Q000187:drug effects*; D013752:Tetracycline / Q000494:pharmacology
chemical_list: D011374:Progesterone; D008656:Mestranol; D013752:Tetracycline; D008525:Medroxyprogesterone; D009640:Norethindrone