1. A look at the future of vascular surgery
Frank J. Veith, MD 
Journal of Vascular Surgery 
Volume 64, Issue 4, Pages (October 2016)
DOI: /j.jvs
Copyright © 2016 Society for Vascular Surgery Terms and Conditions

2. Fig 1
John Homans ( ). Reprinted with permission from Yao and Brewster.1
Journal of Vascular Surgery  , DOI: ( /j.jvs )
Copyright © 2016 Society for Vascular Surgery Terms and Conditions

3. Fig 2
John Homans and his A Textbook of Surgery. Reprinted with permission from Yao and Brewster.1
Journal of Vascular Surgery  , DOI: ( /j.jvs )
Copyright © 2016 Society for Vascular Surgery Terms and Conditions

4. Fig 3
Charles Darwin ( ).
Journal of Vascular Surgery  , DOI: ( /j.jvs )
Copyright © 2016 Society for Vascular Surgery Terms and Conditions

5. Fig 4
Charles Darwin's classic and disruptive book, The Origin of Species, on evolution and survival of the fittest.
Journal of Vascular Surgery  , DOI: ( /j.jvs )
Copyright © 2016 Society for Vascular Surgery Terms and Conditions