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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).

Review Date 7/28/2018

Updated by: Denis Hadjiliadis, MD, MHS, Paul F. Harron, Jr. Associate Professor of Medicine, Pulmonary, Allergy, and Critical Care, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.