The impact of smoking in primary spontaneous pneumothorax Yeung-Leung Cheng, MD, PhD, Tsai-Wang Huang, MD, Chih-Kung Lin, MD, Shih-Chun Lee, MD, Ching Tzao, MD, PhD, Jen-Chih Chen, MD, Hung Chang, MD, PhD The Journal of Thoracic and Cardiovascular Surgery Volume 138, Issue 1, Pages 192-195 (July 2009) DOI: 10.1016/j.jtcvs.2008.12.019 Copyright © 2009 The American Association for Thoracic Surgery Terms and Conditions
Figure 1 CONSORT diagram indicating the selection of study patients. COPD, Chronic obstructive pulmonary disease. The Journal of Thoracic and Cardiovascular Surgery 2009 138, 192-195DOI: (10.1016/j.jtcvs.2008.12.019) Copyright © 2009 The American Association for Thoracic Surgery Terms and Conditions