title: [Risk factors in pregnancy and labor and the survival time of low-birth-weight infants].
mesh_terms: D000367:Age Factors; D005260:Female; D006801:Humans; D007223:Infant; D007226:Infant Mortality; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D008431:Maternal-Fetal Exchange; D007744:Obstetric Labor Complications; D011247:Pregnancy; D011248:Pregnancy Complications; D012306:Risk; D013997:Time Factors
vernacular_title: Czynniki ryzyka w ciazy i porodzie a czas przezycia noworodków i niemowlat urodzonych z niska masa ciała.