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Comparison of two DNA extractions and nested PCR, real-time PCR, a new commercial PCR assay, and bacterial culture for detection of Mycobacterium avium subsp. paratuberculosis in bovine feces.
Christopher-Hennings J, Dammen MA, Weeks SR, Epperson WB, Singh SN, Steinlicht GL, Fang Y, Skaare JL, Larsen JL, Payeur JB, Nelson EA. Christopher-Hennings J, et al. Among authors: dammen ma. J Vet Diagn Invest. 2003 Mar;15(2):87-93. doi: 10.1177/104063870301500201. J Vet Diagn Invest. 2003. PMID: 12661717
Detection of U.S., Lelystad, and European-like porcine reproductive and respiratory syndrome viruses and relative quantitation in boar semen and serum samples by real-time PCR.
Wasilk A, Callahan JD, Christopher-Hennings J, Gay TA, Fang Y, Dammen M, Reos ME, Torremorell M, Polson D, Mellencamp M, Nelson E, Nelson WM. Wasilk A, et al. J Clin Microbiol. 2004 Oct;42(10):4453-61. doi: 10.1128/JCM.42.10.4453-4461.2004. J Clin Microbiol. 2004. PMID: 15472293 Free PMC article.