1. Ostial left main coronary artery stenosis as an additional risk factor in off-pump coronary artery bypass grafting 
Hui-Li Gan, MD, PhD, Jian-Qun Zhang, MD, Wei Xiao, MD, Shuang Zhao, MD, Fang-jong Huang, MD, Cheng-xiong Gu, MD, Chun- shang Lu, MD, Pi-Shan Wang, MD 
The Journal of Thoracic and Cardiovascular Surgery 
Volume 143, Issue 1, Pages (January 2012)
DOI: /j.jtcvs
Copyright © 2012 The American Association for Thoracic Surgery Terms and Conditions

2. Figure 1
The Kaplan-Meier curves of freedom from major adverse cardiac and cerebral events for the non–left main disease (Non-Mainstem Disease) group, the nonostial left main stenosis (Non-Ostial-LMS) group, and the ostial left main stenosis (Ostial-LMS) group. Cum Survival, Cumulative survival.
The Journal of Thoracic and Cardiovascular Surgery  , DOI: ( /j.jtcvs )
Copyright © 2012 The American Association for Thoracic Surgery Terms and Conditions