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Smith EM, Ritchie JM, Levy BT, Zhang W, Wang D, Haugen TH, Turek LP.Smith EM, et al. Among authors: levy bt.Cancer Detect Prev. 2003;27(6):472-80. doi: 10.1016/s0361-090x(03)00104-1.Cancer Detect Prev. 2003.PMID: 14642556
Kutza J, Smith E, Levy B, Jian J, Haugen T, Turek L.Kutza J, et al.Ann Epidemiol. 2000 Oct 1;10(7):465-466. doi: 10.1016/s1047-2797(00)00090-9.Ann Epidemiol. 2000.PMID: 11018386
Smith EM, Levy BT, Ritchie JM, Jia J, Wang D, Haugen TH, Turek LP.Smith EM, et al. Among authors: levy bt.Eur J Cancer Prev. 2002 Jun;11(3):295-305. doi: 10.1097/00008469-200206000-00013.Eur J Cancer Prev. 2002.PMID: 12131663
Bergus GR, Levy SM, Kirchner HL, Warren JJ, Levy BT.Bergus GR, et al. Among authors: levy bt, levy sm.Paediatr Perinat Epidemiol. 2001 Jan;15(1):61-7. doi: 10.1046/j.1365-3016.2001.00326.x.Paediatr Perinat Epidemiol. 2001.PMID: 11237117
Yang R, Carter BL, Gums TH, Gryzlak BM, Xu Y, Levy BT.Yang R, et al. Among authors: levy bt.BMC Med Res Methodol. 2017 Jul 10;17(1):94. doi: 10.1186/s12874-017-0368-7.BMC Med Res Methodol. 2017.PMID: 28693427Free PMC article.Clinical Trial.