1. Intraoperative Factors and the Risk of Respiratory Complications After Pneumonectomy 
Randal S. Blank, MD, PhD, Christoph Hucklenbruch, MD, Kelly K. Gurka, MPH, PhD, David C. Scalzo, MD, Xin-Qun Wang, MS, David R. Jones, MD, Stephen R. Tanner, MD, James M. Jaeger, MD, PhD 
The Annals of Thoracic Surgery 
Volume 92, Issue 4, Pages (October 2011)
DOI: /j.athoracsur
Copyright © 2011 The Society of Thoracic Surgeons Terms and Conditions

2. Fig 1
Box plot of relationships between length of hospital stay in days and respiratory failure or respiratory complications. Boxes indicate the interquartile range. The bold horizontal line corresponds to the 50th quartile (median value). The p values were estimated using nonparametric Wilcoxon rank sum tests.
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )
Copyright © 2011 The Society of Thoracic Surgeons Terms and Conditions