[Vectorcardiographic studies before and after delivery].
D000293:Adolescent; D000328:Adult; D005260:Female; D006321:Heart / Q000502:physiology*; D006801:Humans; D011247:Pregnancy; D011263:Pregnancy Trimester, Third; D012016:Reference Values; D014672:Vectorcardiography
Vektorkardiografski izsledvaniia predi i sled razhdane