1. Department of Diagnostic Imaging, National Cancer Institute, No. 4, Jalan P7, Presint 7, 62250 Putrajaya, Malaysia
2. Department of Biomedical Imaging, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
3. Department of Surgery, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia