Grange F, Mohr P, Harries M, Ehness R, Benjamin L, Siakpere O, Barth J, Stapelkamp C, Pfersch S, McLeod LD, Kaye JA, Wolowacz S, Kontoudis I. Economic burden of advanced melanoma in France, Germany, and the UK: a retrospective observational study (Melanoma Burden-of-Illness Study). Melanoma Res. 2017 Dec;27(6):607-18. doi: 10.1097/CMR.0000000000000372
Wardman M, Chintakayala PK, de Jong G. Values of travel time in Europe: review and meta-analysis. Transp Res Part A Policy Pract. 2016 Dec;94:93-111. doi: 10.1016/j.tra.2016.08.019