Secondhand smoke and lung cancerBackSecondhand smoke and lung cancerSecondhand smoke has been classified as a known cause of lung cancer in humans (Group A carcinogen). Content is best viewed in IE9 or above, Firefox and Google Chrome browser.
Secondhand smoke and lung cancerBackSecondhand smoke and lung cancerSecondhand smoke has been classified as a known cause of lung cancer in humans (Group A carcinogen).
