2Hans CJ, John R. Analysis and reduction of 3D systematic and random setup deviations during the simulation and treatment of lung cancer patients with CT based external beamradiotherapy dose planning. Int J Radiat Oncol Biol Phys, 2003, 49(8): 857- 868.
3Van de Steene J, Van den Heuvel F. Electronic portal imaging with on-line correction of setup deviation in thoracic irradiation: clinical evaluation. Int J Radiat Oncol Biol Phys, 2001, 40( 11 ): 967-976.
