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Bunn PA Jr, Helfrich B, Soriano AF, Franklin WA, Varella-Garcia M, Hirsch FR, Baron A, Zeng C, Chan DC.Bunn PA Jr, et al. Among authors: hirsch fr.Clin Cancer Res. 2001 Oct;7(10):3239-50.Clin Cancer Res. 2001.PMID: 11595720