title: Legal abortion: a half-decade of experience.
mesh_terms: D000029:Abortion, Legal / Q000266:history* / Q000379:methods / Q000401:mortality; D000293:Adolescent; D000328:Adult; D000367:Age Factors; D001723:Birth Rate; D003267:Contraception; D005006:Ethnicity; D005191:Family Characteristics; D005260:Female; D006268:Health Facilities / Q000706:statistics & numerical data; D049673:History, 20th Century; D006801:Humans; D008484:Medicaid; D009519:New York City; D010298:Parity; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D012111:Residence Characteristics