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Gentry PR, Covington TR, Clewell HJ 3rd, Anderson ME.Gentry PR, et al. Among authors: covington tr.J Toxicol Environ Health A. 2003 Dec 12;66(23):2209-25. doi: 10.1080/713853996.J Toxicol Environ Health A. 2003.PMID: 14612334
Gentry PR, Covington TR, Mann S, Shipp AM, Yager JW, Clewell HJ 3rd.Gentry PR, et al. Among authors: covington tr.J Toxicol Environ Health A. 2004 Jan 9;67(1):43-71. doi: 10.1080/15287390490253660.J Toxicol Environ Health A. 2004.PMID: 14668111
Hack CE, Covington TR, Lawrence G, Shipp AM, Gentry R, Yager J, Clewell HJ 3rd.Hack CE, et al. Among authors: covington tr.J Toxicol Environ Health A. 2007 Mar 1;70(5):445-64. doi: 10.1080/15287390600870726.J Toxicol Environ Health A. 2007.PMID: 17454569