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Secondhand smoke and lung cancer

Secondhand smoke and lung cancer

Overview

Secondhand smoke has been classified as a known cause of lung cancer in humans (Group A carcinogen).

Update Date 8/29/2015

Updated by: Laura J. Martin, MD, MPH, ABIM Board Certified in Internal Medicine and Hospice and Palliative Medicine, Atlanta, GA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.