title: Letter: Subcutaneous heparin and postoperative thromboembolism.
mesh_terms: D000368:Aged; D004305:Dose-Response Relationship, Drug; D005260:Female; D006493:Heparin / Q000008:administration & dosage* / Q000097:blood / Q000627:therapeutic use; D006801:Humans; D007279:Injections, Subcutaneous; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000517:prevention & control*; D013923:Thromboembolism / Q000517:prevention & control*; D013997:Time Factors
chemical_list: D006493:Heparin