Authors: Andrew Kennedy; Subir Nag; Riad Salem; Ravi Murthy; Alexander J McEwan; Charles Nutting; Al Benson; Joseph Espat; Jose Ignacio Bilbao; Ricky A Sharma; James P Thomas; Douglas Coldwell Journal: Int J Radiat Oncol Biol Phys Date: 2007-05-01 Impact factor: 7.038