title: In Reply to Sun et al.
authors.affiliation: Department of Medical Biophysics, The University of Western Ontario, London, Ontario, Canada.
authors.forename: Sarah A
authors.initials: SA
authors.lastname: Mattonen
authors.affiliation: Departments of Medical Biophysics and Oncology, The University of Western Ontario, London, Ontario, Canada.
authors.forename: Aaron D
authors.initials: AD
authors.lastname: Ward
authors.affiliation: Department of Oncology, The University of Western Ontario, London, Ontario, Canada; Division of Radiation Oncology, London Health Sciences Centre, London, Ontario, Canada.
authors.forename: David A
authors.initials: DA
authors.lastname: Palma