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Thigpen JE, Li LA, Richter CB, Lebetkin EH, Jameson CW.Thigpen JE, et al. Among authors: richter cb.Lab Anim Sci. 1987 Oct;37(5):602-5.Lab Anim Sci. 1987.PMID: 3695394
Thigpen JE, Li LA, Richter CB, Lebetkin EH, Jameson CW.Thigpen JE, et al. Among authors: richter cb.Lab Anim Sci. 1987 Oct;37(5):596-601.Lab Anim Sci. 1987.PMID: 3695393
Everitt JI, Richter CB.Everitt JI, et al. Among authors: richter cb.Environ Health Perspect. 1990 Apr;85:239-47. doi: 10.1289/ehp.85-1568352.Environ Health Perspect. 1990.PMID: 2200664Free PMC article.Review.