title: An ecological analysis of urban therapeutic abortion rates.
mesh_terms: D000032:Abortion, Therapeutic; D000293:Adolescent; D000328:Adult; D004463:Ecology; D005191:Family Characteristics; D005260:Female; D006801:Humans; D007086:Illegitimacy; D008350:Manitoba; D008875:Middle Aged; D011247:Pregnancy; D012847:Single Person; D014171:Transients and Migrants; D014505:Urban Population