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Weitman S, Langevin AM, Berkow RL, Thomas PJ, Hurwitz CA, Kraft AS, Dubowy RL, Smith DL, Bernstein M.Weitman S, et al.Clin Cancer Res. 1999 Sep;5(9):2344-8.Clin Cancer Res. 1999.PMID: 10499603Clinical Trial.