title: [Maternity in juveniles].
mesh_terms: D000293:Adolescent; D000367:Age Factors; D005260:Female; D006801:Humans; D008572:Menarche; D011044:Poland; D011247:Pregnancy; D011253:Pregnancy in Adolescence; D012725:Sexual Behavior; D012741:Sexual Maturation
vernacular_title: Macierzyństwo nieletnich.