Life table rates and person month ratios as summary statistics for contraceptive trials.
D003276:Contraceptives, Oral / Q000009:adverse effects / Q000494:pharmacology; D004341:Drug Evaluation; D005260:Female; D006801:Humans; D008433:Mathematics; D011247:Pregnancy; D011336:Probability; D013223:Statistics as Topic; D013997:Time Factors
D003276:Contraceptives, Oral