1. Nepean Urology Research Group, Nepean Hospital, Kingswood, NSW, Australia

2. Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia

3. Anatomical Pathology, Douglass Hanly Moir Pathology, Sonic Healthcare, Macquarie Park, NSW, Australia

4. Department of Clinical Medicine, Faculty of Medicine and Health Sciences, Macquarie University, Sydney, NSW, Australia