Nicholas J Campain1, Ruaraidh P MacDonagh2, Kien Alfred Mteta3, John S McGrath1. 1. Exeter Surgical Health Services Research Unit - Urology, Royal Devon and Exeter NHS Foundation Trust, Exeter, Devon, UK. 2. Department of Urology, Musgrove Park Hospital, Taunton and Somerset NHS Foundation Trust, Somerset, UK. 3. Bugando Medical Centre, Mwanza, Tanzania.