1. Hannah Bower, Magnus Björkholm, Paul W. Dickman, Paul C. Lambert, and Therese M.-L. Andersson, Karolinska Institutet; Magnus Björkholm, Karolinska University Hospital Solna, Stockholm; Martin Höglund, University Hospital Uppsala, Uppsala, Sweden; Paul C. Lambert, University of Leicester, Leicester, United Kingdom; and Therese M.-L. Andersson, Danish Cancer Society, Copenhagen, Denmark.