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Penson DF, Albertsen PC, Nelson PS, Barry M, Stanford JL.Penson DF, et al.J Natl Cancer Inst. 2001 Dec 5;93(23):1822-3. doi: 10.1093/jnci/93.23.1822.J Natl Cancer Inst. 2001.PMID: 11734600No abstract available.