[1] Elbe Klinikum Buxtehude, Dept Dermatol, Buxtehude, Germany
[2] Royal Marsden NHS Fdn Trust, Dept Med, London, England
[3] ICON Plc, Hlth Econ Reimbursement & Outcomes, Global HTA, New York, NY USA
[4] UCL, Dept Stat Sci, London, England
[5] Bristol Myers Squibb, Hlth Econ & Outcomes Res, Princeton, NJ USA
[6] Bristol Myers Squibb, Hlth Econ & Outcomes Res, Uxbridge, Middx, England
[7] Univ Oxford, Dept Oncol, Oxford, England