title: Addendum to salzman paper: Efficacy of low dose heparin prophylaxis.
mesh_terms: D006493:Heparin / Q000008:administration & dosage* / Q000627:therapeutic use; D006801:Humans; D007279:Injections, Subcutaneous; D011183:Postoperative Complications / Q000188:drug therapy; D013923:Thromboembolism / Q000188:drug therapy / Q000517:prevention & control*
chemical_list: D006493:Heparin