title: Statins said to reduce cancer deaths.  But benefit is tied to existing statin use preceding a cancer diagnosis, not to statins as a cancer preventive.
mesh_terms: D000924:Anticholesteremic Agents / Q000008:administration & dosage*; D006801:Humans; D019161:Hydroxymethylglutaryl-CoA Reductase Inhibitors / Q000008:administration & dosage*; D009369:Neoplasms / Q000401:mortality* / Q000517:prevention & control
chemical_list: D000924:Anticholesteremic Agents; D019161:Hydroxymethylglutaryl-CoA Reductase Inhibitors