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John H, Eddleston M, Clutton RE, Worek F, Thiermann H.John H, et al.J Chromatogr B Analyt Technol Biomed Life Sci. 2010 May 15;878(17-18):1234-45. doi: 10.1016/j.jchromb.2010.01.003. Epub 2010 Jan 14.J Chromatogr B Analyt Technol Biomed Life Sci. 2010.PMID: 20106727
John H, Thiermann H.John H, et al.J Chromatogr B Analyt Technol Biomed Life Sci. 2010 May 15;878(17-18):1205-6. doi: 10.1016/j.jchromb.2010.03.043. Epub 2010 Mar 27.J Chromatogr B Analyt Technol Biomed Life Sci. 2010.PMID: 20395180No abstract available.
John H, Mikler J, Worek F, Thiermann H.John H, et al.Drug Test Anal. 2012 Mar-Apr;4(3-4):194-8. doi: 10.1002/dta.338. Epub 2011 Oct 1.Drug Test Anal. 2012.PMID: 21964777
John H, Eddleston M, Eddie Clutton R, Worek F, Thiermann H.John H, et al.Drug Test Anal. 2012 Mar-Apr;4(3-4):169-78. doi: 10.1002/dta.340. Epub 2011 Nov 18.Drug Test Anal. 2012.PMID: 22102522