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Grabenauer M, Moore KN, Bynum ND, White RM, Mitchell JM, Hayes ED, Flegel R.Grabenauer M, et al. Among authors: flegel r.J Anal Toxicol. 2018 Jul 1;42(6):392-399. doi: 10.1093/jat/bky021.J Anal Toxicol. 2018.PMID: 29554298
Concheiro M, Newmeyer MN, da Costa JL, Flegel R, Gorelick DA, Huestis MA.Concheiro M, et al. Among authors: flegel r.Drug Test Anal. 2015 Jul;7(7):586-91. doi: 10.1002/dta.1742. Epub 2014 Oct 24.Drug Test Anal. 2015.PMID: 25345619Free PMC article.
Newmeyer MN, Concheiro M, da Costa JL, Flegel R, Gorelick DA, Huestis MA.Newmeyer MN, et al. Among authors: flegel r.Drug Test Anal. 2015 Oct;7(10):877-83. doi: 10.1002/dta.1784. Epub 2015 Mar 18.Drug Test Anal. 2015.PMID: 25786659Free PMC article.