6Van Vulpen M, Field C, Raaijmakers CP, et al. Comparing step-and-shoot IMRT with dynamic helical tomotherapy IM- RT plans for head-and-neck cancer[J]. Int J Radiat Oncol Biol Phys ,2005,62(5 ) : 1535.
7Chen Y J, Liu A, Han C, et al. Helical tomotherapy for radio- therapy in esophageal cancer: a preferred plan with better conformal target coverage and more homogeneous dose dis- tribution [J]. Med Dosim, 2007,32 ( 3 ) : 166.
8Wang SL, Liao Z,Vaporciyan AA,et al. Investigation of c- linical and dosimetric factors associated with postoperative pulmonary complications in esophageal cancer patients trea- ted with concurrent chemoradiotherapy followed by surgery [J]. Int J Radiat Oncol Biol Phys,2006,64(3) :692.
9Song CH, Pyo H, Moon SH, Treatment-Related pneumonitis and acute esophagitis in non-small-cell lung cancer patients treated with chemotherapy and helical tomotherapy [J] Int J Radiat Oncol Biol Phys, 2010,78 ( 3 ) : 651.
10Marks LB,Yorke ED,Jackson A,et al. Use of normal tissue complication probability models in the clinic [ J ]. Int J Ra- diat Oncol Biol Phys,2010,76(3) :S10.