8[1]Mohan R,Wu Q,Manning M,et al. Radiobiological considerations in the design of fractionation strategies for intensity-modulated radiation therapy of head and neck cancers.Int J Radiat Oncol Biol Phys, 2000;46:619～630
9[2]Eisbruch A, Marsh LH,Martel MK,et al. Comprehensive irradiation of head and neck cancer using conformal multisegmental fields:assessment of target coverage and noninvolved tissue sparing. Int J Radiat Oncol Biol Phys, 1998;41:559～568
10[3]Dawson LA,Anzai Y,Marsh L,et al. Patterns of local regional recurrence following parotid-sparing conformal and segmental intensity-modulated radiotherapy for head and neck cancer. Iht J Radiat Oncol Biol Phys,2000;46:1117～1126
