ocr: Factor Site of Cancer Tobacco smoking Lung, bladder, esophagus, mouth, larynx, liver, other Tobacco products, smokeless Oral cavity Environmental tobacco smoke Lung Betel quid with tobacco Oral cavity (chewing) Alcoholic beverages Esophagus, oral, pharynx, larynx, liver Ionizing radiation Bone marrow and several others Ultraviolet radiation Melanoma and nonmelanocytic (sunlight) skin cancer