title: The prevention of postoperative venous thromboembolism.
mesh_terms: D000925:Anticoagulants / Q000627:therapeutic use; D001241:Aspirin / Q000627:therapeutic use; D003911:Dextrans / Q000627:therapeutic use; D006493:Heparin / Q000627:therapeutic use; D006801:Humans; D006886:Hydroxychloroquine / Q000627:therapeutic use; D007866:Leg / Q000098:blood supply; D011183:Postoperative Complications / Q000517:prevention & control*; D013923:Thromboembolism / Q000517:prevention & control*
chemical_list: D000925:Anticoagulants; D003911:Dextrans; D006886:Hydroxychloroquine; D006493:Heparin; D001241:Aspirin