1. Historical perspectives of The American Association for Thoracic Surgery: Tirone E. David 
Vivek Rao, MD, PhD, Carolyn M. David, BN 
The Journal of Thoracic and Cardiovascular Surgery 
Volume 153, Issue 4, Pages (April 2017)
DOI: /j.jtcvs
Copyright © 2016 The American Association for Thoracic Surgery Terms and Conditions

2. Figure 1
Dr David examines the Toronto Stentless Porcine Valve (St Jude Medical, Minneapolis, Minn).
The Journal of Thoracic and Cardiovascular Surgery  , DOI: ( /j.jtcvs )
Copyright © 2016 The American Association for Thoracic Surgery Terms and Conditions

3. Figure 2
Dr David and his new best friend, his grandson Leo, pursuing an old passion.
The Journal of Thoracic and Cardiovascular Surgery  , DOI: ( /j.jtcvs )
Copyright © 2016 The American Association for Thoracic Surgery Terms and Conditions

4. Figure 3 Dr David and Dr Rao circa 2010.
The Journal of Thoracic and Cardiovascular Surgery  , DOI: ( /j.jtcvs )
Copyright © 2016 The American Association for Thoracic Surgery Terms and Conditions

5. Dr David examines the Toronto Stentless Porcine Valve (St Jude Medical, Minneapolis, Minn).
The Journal of Thoracic and Cardiovascular Surgery  , DOI: ( /j.jtcvs )
Copyright © 2016 The American Association for Thoracic Surgery Terms and Conditions