An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Markowitz JS, Patrick KS.Markowitz JS, et al.J Chromatogr B Biomed Appl. 1995 Jun 9;668(1):171-4. doi: 10.1016/0378-4347(95)00060-v.J Chromatogr B Biomed Appl. 1995.PMID: 7550974
Zhu HJ, Wang JS, Patrick KS, Donovan JL, DeVane CL, Markowitz JS.Zhu HJ, et al. Among authors: markowitz js.J Chromatogr B Analyt Technol Biomed Life Sci. 2007 Oct 15;858(1-2):91-5. doi: 10.1016/j.jchromb.2007.08.014. Epub 2007 Aug 19.J Chromatogr B Analyt Technol Biomed Life Sci. 2007.PMID: 17804308Free PMC article.
LeVasseur NL, Zhu HJ, Markowitz JS, DeVane CL, Patrick KS.LeVasseur NL, et al. Among authors: markowitz js.J Chromatogr B Analyt Technol Biomed Life Sci. 2008 Feb 1;862(1-2):140-9. doi: 10.1016/j.jchromb.2007.11.030. Epub 2007 Dec 4.J Chromatogr B Analyt Technol Biomed Life Sci. 2008.PMID: 18155648Free PMC article.
Zhu HJ, Patrick KS, Markowitz JS.Zhu HJ, et al. Among authors: markowitz js.J Chromatogr B Analyt Technol Biomed Life Sci. 2011 Apr 1;879(11-12):783-8. doi: 10.1016/j.jchromb.2011.02.033. Epub 2011 Feb 25.J Chromatogr B Analyt Technol Biomed Life Sci. 2011.PMID: 21402502Free PMC article.