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Steen RG, Koury B S M, Granja CI, Xiong X, Wu S, Glass JO, Mulhern RK, Kun LE, Merchant TE.Steen RG, et al. Among authors: wu s.Int J Radiat Oncol Biol Phys. 2001 Jan 1;49(1):79-91. doi: 10.1016/s0360-3016(00)01351-1.Int J Radiat Oncol Biol Phys. 2001.PMID: 11163500