title: In Regard to Perrier et al.
authors.affiliation: University Department of Radiation Oncology, Oscar Lambret Comprehensive Cancer Center, Lille, France.
authors.forename: Alexandre
authors.initials: A
authors.lastname: Escande
authors.affiliation: Department of Radiation Oncology, Jules Bordet Institut, Université libre de Bruxelles, Brussels, Belgium.
authors.forename: Dirk
authors.initials: D
authors.lastname: Van Gestel
authors.affiliation: Department of Medical Physics, Oscar Lambret Comprehensive Cancer Center, Lille, France.
authors.forename: Thomas
authors.initials: T
authors.lastname: Lacornerie
authors.affiliation: Department of Medical Physics, Institut de Cancérologie de Lorraine, Nancy, France.
authors.forename: Vincent
authors.initials: V
authors.lastname: Marchesi
authors.affiliation: Department of Radiation Oncology, Francois Baclesse Cancer Center, Caen, France.
authors.forename: Carmen
authors.initials: C
authors.lastname: Florescu
authors.affiliation: Department of Medical Physics, Gustave Roussy Cancer Center, Villejuif, France.
authors.forename: Alain
authors.initials: A
authors.lastname: Guemnie-Tafo
authors.affiliation: Department of Radiation Oncology, Institut de Cancérologie de Lorraine, Nancy, France.
authors.forename: Didier
authors.initials: D
authors.lastname: Peiffert
authors.affiliation: Department of Medical Physics, Institut de Cancérologie de l'Ouest, Nantes, France.
authors.forename: Albert
authors.initials: A
authors.lastname: Lisbona
authors.affiliation: University Department of Radiation Oncology, Gustave Roussy Cancer Center, Villejuif, France.
authors.forename: Eric
authors.initials: E
authors.lastname: Deutsch
authors.affiliation: University Department of Radiation Oncology, Oscar Lambret Comprehensive Cancer Center, Lille, France.
authors.forename: Xavier
authors.initials: X
authors.lastname: Mirabel