1. Department of Cardiac Surgery, Lankenau Medical Center, Main Line Health Lankenau Heart Institute Wynnewood Pennsylvania USA
2. Department of Cardiac Surgery Research, Lankenau Institute for Medical Research Main Line Health Wynnewood Pennsylvania USA
3. Department of Cardiovascular Sciences KU Leuven Leuven Belgium
4. Department of Cardiac Surgery Philadelphia College of Osteopathic Medicine Bala Cynwyd Pennsylvania USA