1. Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, Ohio, USA
2. The Stone Centre at VGH, Department of Urologic Sciences, University of British Colombia, Vancouver, British Columbia, Canada
3. Department of Urology, University of Wisconsin—Madison School of Medicine and Public Health, Madison, Wisconsin, USA
4. Department of Urology, Intermountain Healthcare, Salt Lake City, Utah, USA
5. Division of Urology, The Children’s Hospital of Philadelphia and Departments of Surgery and Biostatistics, Epidemiology and Informatics, University of Pennsylvania, Philadelphia, Pennsylvania, USA
6. Department of Microbiology and Immunology, Loyola University—Chicago, Maywood, Illinois, USA
7. Yenepoya Research Centre, Yenepoya University, Mangalore, India
8. Geriatric-Rehabilitation Department, Azienda Ospedaliero-Universitaria di Parma, Parma, Italy
9. Department of Medicine and Surgery, University of Parma, Parma, Italy
10. Department of Urology, University of California—San Diego School of Medicine, La Jolla, California, USA
11. Department of Cardiovascular and Metabolic Sciences, Cleveland Clinic, Cleveland, Ohio, USA