1. Department of Surgery, University of Ghana Medical School, College of Health Sciences, University of Ghana, Accra, Ghana & National Cardiothoracic Center, Korle-Bu Teaching Hospital, Accra, Ghana
2. National Cardiothoracic Center, Korle-Bu Teaching Hospital, Accra, Ghana & Department of Surgery, School of Medical Sciences, University of Health and Allied Sciences, Ho, Ghana
3. National Cardiothoracic Center, Korle-Bu Teaching Hospital, Accra, Ghana & Department of Anaesthesia, University of Ghana Medical School, College of Health Sciences, University of Ghana, Accra, Ghana
4. National Cardiothoracic Center, Korle-Bu Teaching Hospital, Accra, Ghana & Department of Surgery, School of Medical Sciences, University of Health and Allied Sciences, Ho, Ghana
5. National Cardiothoracic Center, Korle-Bu Teaching Hospital, Accra, Ghana