1 Jakob Lauritsen, MD; Mikkel Bandak, MD; Michael, Kreiberg, MD; Thomas Wagner, MD; and Maria G.G. Kier, PhD, Department of Oncology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark; Christian Dehlendorff, PhD, Unit of Statistics and Pharmacoepidemiology, Danish Cancer Society Research Center, Danish Cancer Society, Copenhagen, Denmark; and Gedske Daugaard, DMSc, Department of Oncology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark.