title: [Pregnancy in adolescence in Japan: report of a committee on Obstetrical, Gynecological Pediatric and Adolescent Problems].
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D007564:Japan; D011247:Pregnancy; D011253:Pregnancy in Adolescence; D011795:Surveys and Questionnaires