1. What was old .… is new again!
W. Randolph Chitwood, MD, FACS, FRCS (England) 
The Journal of Thoracic and Cardiovascular Surgery 
Volume 152, Issue 6, Pages (December 2016)
DOI: /j.jtcvs
Copyright © 2016 The American Association for Thoracic Surgery Terms and Conditions

2. Figure 1
The ePTFE leaflet weave repair of Revuelta and colleagues (1989)9: An old technique returns.
The Journal of Thoracic and Cardiovascular Surgery  , DOI: ( /j.jtcvs )
Copyright © 2016 The American Association for Thoracic Surgery Terms and Conditions

3. W. Randolph Chitwood, Jr, MD, FACS, FRCS (England)
The Journal of Thoracic and Cardiovascular Surgery  , DOI: ( /j.jtcvs )
Copyright © 2016 The American Association for Thoracic Surgery Terms and Conditions