The Calabar Rural Maternal and Child Health/Family Planning Project.
D000293:Adolescent; D000328:Adult; D002648:Child; D002662:Child Health Services; D003142:Communication; D003276:Contraceptives, Oral; D005193:Family Planning Services / Q000639:trends*; D005260:Female; D005500:Follow-Up Studies; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D007434:Intrauterine Devices / Q000706:statistics & numerical data; D008427:Maternal Health Services; D008875:Middle Aged; D009549:Nigeria; D012423:Rural Health / Q000639:trends*
D003276:Contraceptives, Oral