[Labor and perinatal infant mortality in breech presentations].
D001946:Breech Presentation; D002031:Bulgaria; D005260:Female; D005313:Fetal Death / Q000453:epidemiology; D006801:Humans; D007226:Infant Mortality; D007231:Infant, Newborn; D007234:Infant, Premature; D007746:Labor Presentation; D007744:Obstetric Labor Complications / Q000453:epidemiology*; D011247:Pregnancy
Razhdaniia i perinatalna detska smurtnost pri sedalishtni predlezhaniia.