there were clear covariations ( p less than 0.001 ) between the amount of tobacco smoked and the risk of death due to cancer of the oral cavity and larynx , oesophagus , liver , pancreas , lung , and bladder as well as due to bronchitis and emphysema , ischaemic heart disease , aortic aneurysm , and peptic ulcer .
C0024109
lung
C0006277
bronchitis