Letter: Prophylaxis of postoperative deep vein thrombosis.
D004558:Electric Stimulation; D005260:Female; D006493:Heparin / Q000627:therapeutic use; D006801:Humans; D007231:Infant, Newborn; D011183:Postoperative Complications / Q000517:prevention & control*; D011247:Pregnancy; D011655:Pulmonary Embolism / Q000517:prevention & control; D013924:Thrombophlebitis / Q000517:prevention & control*
D006493:Heparin