[Tobacco smoking by pregnant women and birth weight of the newborn with reference to the time of pregnancy].
D001724:Birth Weight; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008431:Maternal-Fetal Exchange; D011247:Pregnancy; D012907:Smoking / Q000150:complications*; D013997:Time Factors
Palenie tytoniu przez kobiety ciezarne a urodzeniowy ciezar ciała noworodka w odniesieniu do okresu trwania cyazy