[Course of pregnancy and labor in young and older primapara].
D000022:Abortion, Spontaneous; D000293:Adolescent; D000328:Adult; D000367:Age Factors; D005260:Female; D006801:Humans; D007744:Obstetric Labor Complications / Q000209:etiology*; D007752:Obstetric Labor, Premature; D011247:Pregnancy; D011248:Pregnancy Complications / Q000209:etiology*
Techenie beremennosti i rodov u iunykh i pozhilykh pervorodiashchikh.