title: In reply to Ren et al.
authors.affiliation: Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan.
authors.forename: James
authors.initials: J
authors.lastname: Balter
authors.affiliation: Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan.
authors.forename: Avraham
authors.initials: A
authors.lastname: Eisbruch
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D058958:Organs at Risk / Q000528:radiation effects*; D009959:Oropharyngeal Neoplasms / Q000532:radiotherapy*; D010306:Parotid Gland / Q000528:radiation effects*; D011880:Radiotherapy Planning, Computer-Assisted / Q000379:methods*; D050397:Radiotherapy, Intensity-Modulated / Q000379:methods*; D012472:Salivation / Q000528:radiation effects*