title: Reply to T. Magnes et al.
authors.affiliation: Netherlands Cancer Institute, Amsterdam; and Catharina Hospital Eindhoven, Eindhoven, the Netherlands.
authors.forename: Maarten J
authors.initials: MJ
authors.lastname: Deenen
authors.affiliation: Netherlands Cancer Institute, Amsterdam, the Netherlands.
authors.forename: Annemieke
authors.initials: A
authors.lastname: Cats
authors.affiliation: Erasmus University Medical Center, Rotterdam, the Netherlands.
authors.forename: Johan L
authors.initials: JL
authors.lastname: Severens
authors.affiliation: Netherlands Cancer Institute, Amsterdam; and Utrecht University, Utrecht, the Netherlands.
authors.forename: Jos H
authors.initials: JH
authors.lastname: Beijnen
authors.affiliation: Netherlands Cancer Institute, Amsterdam; and Utrecht University, Utrecht, the Netherlands j.schellens@nki.nl.
authors.forename: Jan H M
authors.initials: JH
authors.lastname: Schellens