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Hefnawy MM, Sultan MA, Al-Johar HI, Kassem MG, Aboul-Enein HY.Hefnawy MM, et al. Among authors: sultan ma.Drug Test Anal. 2012 Jan;4(1):39-47. doi: 10.1002/dta.260. Epub 2011 Mar 18.Drug Test Anal. 2012.PMID: 21416633
Hefnawy MM, Sultan MA, Al-Shehri MM.Hefnawy MM, et al. Among authors: sultan ma.J Chromatogr B Analyt Technol Biomed Life Sci. 2007 Sep 1;856(1-2):328-36. doi: 10.1016/j.jchromb.2007.06.021. Epub 2007 Jun 29.J Chromatogr B Analyt Technol Biomed Life Sci. 2007.PMID: 17681871
Hefnawy MM, Sultan MA, Al-Shehri MM.Hefnawy MM, et al. Among authors: sultan ma.Anal Chem Insights. 2007 Feb 6;1:13-20.Anal Chem Insights. 2007.PMID: 19690633Free PMC article.
Hefnawy MM, Sultan MA, Al-Shehri MM.Hefnawy MM, et al. Among authors: sultan ma.Chem Pharm Bull (Tokyo). 2007 Feb;55(2):227-30. doi: 10.1248/cpb.55.227.Chem Pharm Bull (Tokyo). 2007.PMID: 17268093Free article.
Abou El-Alamin MM, Sultan MA, Atia MA, Aboul-Enein HY.Abou El-Alamin MM, et al. Among authors: sultan ma.Comb Chem High Throughput Screen. 2020;23(10):991-1001. doi: 10.2174/1386207323666200220114818.Comb Chem High Throughput Screen. 2020.PMID: 32077818
Alarfaj N, Razeq SA, Sultan M.Alarfaj N, et al.Chem Pharm Bull (Tokyo). 2006 Apr;54(4):564-6. doi: 10.1248/cpb.54.564.Chem Pharm Bull (Tokyo). 2006.PMID: 16595967Free article.
Al-Omar M, Al-Majed A, Sultan M, Gadkariem EA, Belal F.Al-Omar M, et al.J Pharm Biomed Anal. 2005 Feb 7;37(1):199-204. doi: 10.1016/j.jpba.2004.10.011.J Pharm Biomed Anal. 2005.PMID: 15664763