1. ARTORG Center for Biomedical Engineering Research University of Bern Bern Switzerland
2. Department of Pharmaceutics, UCL School of Pharmacy University College London London UK
3. Bioengineering Sciences, Faculty of Engineering and Physical Sciences University of Southampton Southampton UK
4. Nuffield Department of Surgical Sciences University of Oxford Oxford UK
5. Department of Urology Inselspital, Bern University Hospital, University of Bern Bern Switzerland
6. The Stone Centre at Vancouver General Hospital, Department of Urologic Sciences University of British Columbia Vancouver British Columbia Canada
7. Oxford Centre for Industrial and Applied Mathematics Mathematical Institute, University of Oxford Oxford UK