[Pregnancies and birth of premature infants by juvenile primaparae with special reference to the proble of acceleration of menarche (clinico-statistical studies)].
D000293:Adolescent; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007234:Infant, Premature; D008572:Menarche; D008598:Menstruation; D011247:Pregnancy
INFANT, PREMATURE; MENSTRUATION; PREGNANCY