Incidence of premature deliveries among women with small heart volumes.
D002306:Cardiac Volume; D000013:Congenital Abnormalities / Q000502:physiology*; D006801:Humans; D015994:Incidence; D007234:Infant, Premature / Q000706:statistics & numerical data*
DEFECTS, CONGENITAL/physiology; INFANT, PREMATURE/statistics