title: The second national family planning and population survey in Singapore 1977.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D005190:Family; D005193:Family Planning Services; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D008297:Male; D011159:Population Surveillance; D012846:Singapore