title: Letter: Smoking and venous thrombosis.
mesh_terms: D004558:Electric Stimulation; D006493:Heparin / Q000008:administration & dosage; D006801:Humans; D007279:Injections, Subcutaneous; D009132:Muscles; D009203:Myocardial Infarction / Q000150:complications; D011183:Postoperative Complications / Q000209:etiology*; D012907:Smoking; D013924:Thrombophlebitis / Q000209:etiology*
chemical_list: D006493:Heparin