1. Repetition is the mother of skill
Christopher R. Burke, MD, Nahush A. Mokadam, MD 
The Journal of Thoracic and Cardiovascular Surgery 
Volume 155, Issue 4, Pages (April 2018)
DOI: /j.jtcvs
Copyright © 2018 The American Association for Thoracic Surgery Terms and Conditions

2. Christopher R. Burke, MD, and Nahush A. Mokadam, MD
The Journal of Thoracic and Cardiovascular Surgery  , DOI: ( /j.jtcvs )
Copyright © 2018 The American Association for Thoracic Surgery Terms and Conditions