1. College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia
2. Department of Medical Physics, Townsville University Hospital, Townsville, QLD 4814, Australia
3. College of Science and Engineering, Flinders University, Bedford Park, SA 5042, Australia
4. Department of Actuarial Science and Applied Statistics, Faculty of Business and Management, UCSI University, Kuala Lumpur 56000, Malaysia