1. Commentary: Minimally invasive valve surgery: How to get from Houston to Leipzig 
Michael Mack, MD 
The Journal of Thoracic and Cardiovascular Surgery 
Volume 157, Issue 5, Pages (May 2019)
DOI: /j.jtcvs
Copyright © 2018 The American Association for Thoracic Surgery Terms and Conditions

2. Professors Friedrich Mohr of Leipzig (left) and Tom Nguyen of Houston (right).
The Journal of Thoracic and Cardiovascular Surgery  , DOI: ( /j.jtcvs )
Copyright © 2018 The American Association for Thoracic Surgery Terms and Conditions