title: Letter: Cigarette smoking, tar content, and death-rates from lung cancer in Australian men.
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D001315:Australia; D006801:Humans; D008175:Lung Neoplasms / Q000453:epidemiology / Q000401:mortality*; D008297:Male; D008875:Middle Aged; D012907:Smoking / Q000150:complications*; D013638:Tars / Q000032:analysis
chemical_list: D013638:Tars