Maternal position and blood pressure during pregnancy and delivery.
D001012:Aorta, Abdominal / Q000503:physiopathology; D001794:Blood Pressure; D036861:Delivery, Obstetric; D005260:Female; D006801:Humans; D007024:Hypotension, Orthostatic / Q000503:physiopathology; D011187:Posture; D011247:Pregnancy; D011249:Pregnancy Complications, Cardiovascular / Q000503:physiopathology; D014682:Vena Cava, Inferior / Q000503:physiopathology