title: Low-dose heparin--concern and perspectives.
mesh_terms: D006493:Heparin / Q000008:administration & dosage* / Q000627:therapeutic use; D006801:Humans; D011655:Pulmonary Embolism / Q000517:prevention & control; D013514:Surgical Procedures, Operative; D013924:Thrombophlebitis / Q000517:prevention & control
chemical_list: D006493:Heparin