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Alberts DS, Mason-Liddil N, Plezia PM, Roe DJ, Dorr RT, Struck RF, Phillips JG.Alberts DS, et al. Among authors: struck rf.J Natl Cancer Inst. 1991 Dec 4;83(23):1739-42. doi: 10.1093/jnci/83.23.1739.J Natl Cancer Inst. 1991.PMID: 1770553Clinical Trial.