The letter particularly targets the new tobacco legislation that exceeded through Congress this summer which gives the FDA power to regulate tobacco products in the usa and notes that the achievement rate of current smokers who try to quit through the use of pharmaceutical aids is really as low as 5 percent. Making smokers more aware of less harmful alternatives, snus and e-cigarettes included, could significantly reduce the quantity of smokers who die because of tobacco-related ailments. Related StoriesNew results reveal association between colorectal malignancy and melanoma drug treatmentCornell biomedical engineers develop 'super natural killer cells' to destroy cancers cells in lymph nodesMD Anderson research reveals why chemotherapy medications not effective for most pancreatic cancer patients Unlike prevailing conventional wisdom, virtually all the center and lung disease from typical cigarettes, and an estimated 98 percent of the cancers mortality, are due to direct inhalation of fresh items of combustion into the lung deep.Treatment was discontinued at 24 weeks or due to disease progression, clinician or patient choice, or unacceptable toxic results. Biliary obstruction by itself was not considered to be disease progression in the lack of radiologically verified disease progression, and treatment could possibly be recommenced after additional biliary normalization and stenting of liver function. Assessments Patients were seen at the start of every routine for a physical exam, monitoring of symptoms and toxic results, assessment of renal function, and a complete blood count.