title: In reply to Healy.
authors.affiliation: Department of Radiation Oncology, Drexel University, Philadelphia, Pennsylvania.
authors.forename: Jun
authors.initials: J
authors.lastname: Yang
authors.forename: Jack
authors.initials: J
authors.lastname: Fowler
mesh_terms: D000465:Algorithms; D019583:Dose Fractionation, Radiation; D009369:Neoplasms / Q000601:surgery*; D058958:Organs at Risk / Q000528:radiation effects*; D011836:Radiation Tolerance / Q000528:radiation effects*; D016634:Radiosurgery / Q000379:methods*