1. Xing L, et al. Physics of intensity modulated radiation therapy. In: Mundt AJ, Roeske JC, editors. Intensity modulated radiation therapy: a clinical perspective. Hamilton & London: BC Decker Inc.; 2005. p. 20–52.
2. Xing L, et al. Dosimetric effects of patient displacement and collimator and gantry angle misalignment on intensity modulated radiation therapy. Radiother Oncol. 2000;56:97–108.
3. Hwang AB, et al. Can positron emission tomography (PET) or PET/computed tomography (CT) acquired in a nontreatment position be accurately registered to a head-and-neck radiotherapy planning CT? Int J Radiat Oncol Biol Phys. 2009;73(2):578–84.
4. Chen L, et al. MRI-based treatment planning for radiotherapy: dosimetric verification for prostate IMRT. Int J Radiat Oncol Biol Phys. 2004;60(2):636–47.
5. International Commission on Radiation Units and Measurements, (ICRU). Prescribing, recording, and reporting photon beam therapy. International Com-mission on Radiation Units and Measurements, ICRU Report 50, ICRU, Bethesda; 1993.