Mexico City: a clinic dropout study.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D001294:Attitude to Health; D003270:Contraceptive Agents / Q000008:administration & dosage; D003276:Contraceptives, Oral; D005193:Family Planning Services / Q000706:statistics & numerical data*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007267:Injections; D007434:Intrauterine Devices / Q000706:statistics & numerical data; D008499:Medical Records; D008800:Mexico; D010361:Patients; D012959:Socioeconomic Factors
D003270:Contraceptive Agents; D003276:Contraceptives, Oral