1. Efficacy and safety of the cyclooxygenase 2 inhibitors parecoxib and valdecoxib in patients undergoing coronary artery bypass surgery 
Elisabeth Ott, MD, Nancy A. Nussmeier, MD, Peter C. Duke, MD, Robert O. Feneck, MD, R.Peter Alston, MD, Michael C. Snabes, MD, PhD, Richard C. Hubbard, MD, Ping H. Hsu, PhD, Lawrence J. Saidman, MD, Dennis T. Mangano, PhD, MD 
The Journal of Thoracic and Cardiovascular Surgery 
Volume 125, Issue 6, Pages (June 2003)
DOI: /S (03)

2. Figure 1
Peak pain intensity difference is defined as the reduction of peak pain intensity from baseline values. Higher values of peak pain intensity difference indicate less pain. ∗P < .050 for analysis of covariance with treatment and country as factors and baseline pain intnsity as covariate.
The Journal of Thoracic and Cardiovascular Surgery  , DOI: ( /S (03) )