[The relationship between the cardiac volume of pregnant women and premature births. (Chest x-ray study)].
D002306:Cardiac Volume; D005260:Female; D006321:Heart / Q000502:physiology*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007234:Infant, Premature; D011247:Pregnancy; D047928:Premature Birth; D014965:X-Rays
HEART/physiology; INFANT, PREMATURE