1. Division of Cardiothoracic Surgery, National Cardiothoracic Centre, University of Nigeria Teaching Hospital, Ituku/Ozalla, Enugu, Nigeria
2. Department of Morbid Anatomy, University of Nigeria Teaching Hospital, Ituku/Ozalla, Enugu, Nigeria
3. Department of Obstetrics & Gynecology, University of Nigeria Teaching Hospital, Ituku/Ozalla, Enugu, Nigeria