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Lenk KM, Chen V, Bernat DH, Forster JL, Rode PA.Lenk KM, et al. Among authors: bernat dh.Subst Use Misuse. 2009;44(14):2128-40. doi: 10.3109/10826080902864571.Subst Use Misuse. 2009.PMID: 20001699Free PMC article.
Fabian LE, Bernat DH, Lenk KM, Shi Q, Forster JL.Fabian LE, et al. Among authors: bernat dh.Public Health Rep. 2011 Sep-Oct;126(5):669-76. doi: 10.1177/003335491112600509.Public Health Rep. 2011.PMID: 21886327Free PMC article.