1. Department of SurgeryQueen Elizabeth Hospital Kota Kinabalu Malaysia
2. Department of MedicineFaculty of Medicine and Health Sciences, Universiti Malaysia Sabah Kota Kinabalu Malaysia
3. Department of Pathobiology and Medical DiagnosticsFaculty of Medicine and Health Sciences, Universiti Malaysia Sabah Kota Kinabalu Malaysia
4. Department of SurgeryFaculty of Medicine and Health Sciences, Universiti Malaysia Sabah Kota Kinabalu Malaysia