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Severson RK, Davis S, Thomas DB, Stevens RG, Heuser L, Sever LE.Severson RK, et al. Among authors: sever le.J Clin Epidemiol. 1989;42(10):995-1001. doi: 10.1016/0895-4356(89)90165-0.J Clin Epidemiol. 1989.PMID: 2809658
Severson RK, Stevens RG, Kaune WT, Thomas DB, Heuser L, Davis S, Sever LE.Severson RK, et al. Among authors: sever le.Am J Epidemiol. 1988 Jul;128(1):10-20. doi: 10.1093/oxfordjournals.aje.a114932.Am J Epidemiol. 1988.PMID: 3381818
Mendola P, Buck GM, Vena JE, Zielezny M, Sever LE.Mendola P, et al. Among authors: sever le.Environ Health Perspect. 1995 May;103(5):498-502. doi: 10.1289/ehp.95103498.Environ Health Perspect. 1995.PMID: 7656880Free PMC article.
Buck GM, Sever LE, Mendola P, Zielezny M, Vena JE.Buck GM, et al. Among authors: sever le.Am J Epidemiol. 1997 Dec 1;146(11):949-54. doi: 10.1093/oxfordjournals.aje.a009221.Am J Epidemiol. 1997.PMID: 9400336