Rajagopalan Malolan S, Beriwal Sushil, Heron Dwight E
Department of Radiation Oncology, University of Pittsburgh Cancer Institute, UPMC Cancer Center, Pittsburgh, Pennsylvania.
Int J Radiat Oncol Biol Phys. 2014 Dec 1;90(5):1258. doi: 10.1016/j.ijrobp.2014.07.040.