[1] Kings Coll London, Ctr Implementat Sci, Hlth Serv & Populat Res Dept, London, England
[2] UCL, MRC Clin Trials & Methodol, London, England
[3] Univ East Anglia, Sch Hlth Sci, Norwich Res Pk, Norwich, Norfolk, England
[4] Kings Coll London, Hlth Serv & Populat Res Dept, Kings Hlth Econ, London, England
[5] Pontificia Univ Catolica Chile, Med Sch, Dept Psychiat, Santiago, Chile
[6] Kings Coll London, David Goldberg Ctr, Inst Psychiat Psychol & Neurosci IoPPN, Hlth Serv & Populat Res Dept, London, England
[7] Royal Stoke Univ Hosp, Dept Urol, Newcastle Rd, Stoke On Trent, Staffs, England
[8] Northampton Gen Hosp, Dept Urol, Northampton, England
[9] Whipps Cross Hosp & Chest Clin, Dept Urol, Barts NHS Trust, Whipps Cross Rd, London, England