1. Coronary endarterectomy with off-pump coronary artery bypass surgery
Sadik Eryilmaz, MD, Mustafa Bahadir Inan, MD, Neyyir Tuncay Eren, MD, Levent Yazicioglu, MD, Tumer Corapcioğlu, MD, Hakki Akalin, MD 
The Annals of Thoracic Surgery 
Volume 75, Issue 3, Pages (March 2003)
DOI: /S (02)

2. Fig 1
Preoperative and postoperative clinical status of the patients according to New York Heart Association (NYHA) classification. (White bars = postoperative; black bars = preoperative.)
The Annals of Thoracic Surgery  , DOI: ( /S (02) )