The continuing challenge of teen pregnancy.
Brigham and Womens Hospital, Boston, Massachusetts, USA.
Margaret
M
Tonelli
D000293:Adolescent; D000294:Adolescent Behavior; D016497:Adolescent Health Services; D000328:Adult; D005260:Female; D006801:Humans; D010353:Patient Education as Topic; D011247:Pregnancy; D011253:Pregnancy in Adolescence; D014481:United States