1. “Lead from the front”: Participative leadership
Victor A. Ferraris, MD, PhD 
The Journal of Thoracic and Cardiovascular Surgery 
Volume 150, Issue 6, Pages (December 2015)
DOI: /j.jtcvs
Copyright © 2015 The American Association for Thoracic Surgery Terms and Conditions

2. Figure 1 Leading from the front (Audie Murphy and Nelson Mandela).
The Journal of Thoracic and Cardiovascular Surgery  , DOI: ( /j.jtcvs )
Copyright © 2015 The American Association for Thoracic Surgery Terms and Conditions

3. William Mayo as a colonel during WWI.
The Journal of Thoracic and Cardiovascular Surgery  , DOI: ( /j.jtcvs )
Copyright © 2015 The American Association for Thoracic Surgery Terms and Conditions