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Hawley ST, Foxhall L, Vernon SW, Levin B, Young JE.Hawley ST, et al. Among authors: levin b.J Cancer Educ. 2001 Winter;16(4):199-204. doi: 10.1080/08858190109528773.J Cancer Educ. 2001.PMID: 11848667
Levin B, Smith RA, Feldman GE, Colditz GA, Fletcher RH, Nadel M, Rothenberger DA, Schroy PS 3rd, Vernon SW, Wender R; National Colorectal Cancer Roundtable.Levin B, et al.Cancer. 2002 Oct 15;95(8):1618-28. doi: 10.1002/cncr.10890.Cancer. 2002.PMID: 12365008Free article.
Anderson WF, Guyton KZ, Hiatt RA, Vernon SW, Levin B, Hawk E.Anderson WF, et al. Among authors: levin b.J Natl Cancer Inst. 2002 Aug 7;94(15):1126-33. doi: 10.1093/jnci/94.15.1126.J Natl Cancer Inst. 2002.PMID: 12165637No abstract available.