A new study of Iowa brain cancer patients finds cigarette smoking is -not- to blame for at least one particular malady. The Yale University study researched 375 patients, all from Iowa, all diagnosed with an aggressive type of brain cancer called glioma. About a third of them were current or former smokers. Researchers conducted a detailed study of the patients and their smoking habits and concluded there was -no- association between tobacco use and glioma. Yale doctors were quick to point out though that smoking -is- associated with a host of other cancers, including: lung, mouth, throat, larynx, esophagus, pancreas, bladder and kidney.