Teenage pregnancies: looking ahead to 1984.
D000029:Abortion, Legal; D000022:Abortion, Spontaneous / Q000453:epidemiology; D000293:Adolescent; D000328:Adult; D005260:Female; D005313:Fetal Death / Q000453:epidemiology; D006801:Humans; D011247:Pregnancy; D011253:Pregnancy in Adolescence; D014481:United States