1. Antegrade or Retrograde Cerebral Perfusion in Ascending Aorta and Hemiarch Surgery? A Propensity-Matched Analysis 
Konstantinos Perreas, FRCS C/Th, PhD, George Samanidis, MD, Apostolis Thanopoulos, MD, Georgios Georgiopoulos, MD, Theofani Antoniou, MD, PhD, Mazen Khoury, MD, PhD, Alkiviadis Michalis, FACS, Andreas Bairaktaris, MD, PhD 
The Annals of Thoracic Surgery 
Volume 101, Issue 1, Pages (January 2016)
DOI: /j.athoracsur
Copyright © 2016 The Society of Thoracic Surgeons Terms and Conditions

2. Fig 1
Graphical summary of covariate imbalance before and after matching. Dot chart depicts the standardized percentage bias for each covariate.
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )
Copyright © 2016 The Society of Thoracic Surgeons Terms and Conditions

3. Fig 2
Association of type of surgery and major study endpoints after propensity score matching. (CI = confidence interval.)
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )
Copyright © 2016 The Society of Thoracic Surgeons Terms and Conditions

4. Fig 3
Receiver operating curves (ROCs) for the incidence of (A) postoperative neurological complication and (B) all-cause probability of death in the matched population (n = 80).
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )
Copyright © 2016 The Society of Thoracic Surgeons Terms and Conditions