Differentials in contraceptive use-effectiveness in the Philippines.
D000367:Age Factors; D001290:Attitude; D003276:Contraceptives, Oral; D003365:Costs and Cost Analysis; D004522:Educational Status; D005260:Female; D006801:Humans; D007434:Intrauterine Devices; D008297:Male; D010298:Parity; D010679:Philippines; D011247:Pregnancy; D011336:Probability; D012071:Religion and Sex; D012424:Rural Population; D013995:Time; D014505:Urban Population
D003276:Contraceptives, Oral