1. Pediatric and Congenital Cardiac Surgery Unit, Department of Surgery, School of Medical Sciences, Health Campus, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
2. Pediatric Cardiology Unit, Department of Pediatrics, Hospital Raja Perempuan Zainab II, Kota Bharu, Kelantan, Malaysia
3. Institute of Genetic Medicine, Newcastle University, International Centre for Life, Newcastle upon Tyne, United Kingdom
4. Pediatric Cardiac Surgery Unit, East Midlands Congenital Heart Center, Glenfield Hospital, Leicester, United Kingdom