Maternal cardiac volume and premature delivery.
D001724:Birth Weight; D001810:Blood Volume; D002306:Cardiac Volume; D000013:Congenital Abnormalities / Q000453:epidemiology; D005260:Female; D005387:Finland; D006801:Humans; D007226:Infant Mortality; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D007234:Infant, Premature; D007752:Obstetric Labor, Premature; D010920:Placenta / Q000098:blood supply; D011247:Pregnancy; D012039:Regional Blood Flow