1. Department of Thoracic and Cardiovascular Surgery, Hue Central Hospital, Hue City, Vietnam
2. David Geffen School of Medicine, Los Angeles, CA, USA
3. Department of Medical Engineering, University of South Florida, Tampa, FL, USA
4. Department of Adult Cardiovascular Surgery, University Medical Center Ho Chi Minh City, Ho Chi Minh City, Vietnam
5. Department of Chemistry, University of South Florida, Tampa, FL, USA