[Incidence and outcomes of pregnancy in urban and rural areas].
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D001723:Birth Rate; D005260:Female; D006801:Humans; D008875:Middle Aged; D011247:Pregnancy; D012424:Rural Population; D014586:USSR; D014505:Urban Population
Chastota i iskhody beremennosti sredi gorodskikh i sel'skikh zhitel'nits.