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Hefnawy MM, Sultan MA, Al-Johar HI, Kassem MG, Aboul-Enein HY.Hefnawy MM, et al. Among authors: kassem mg.Drug Test Anal. 2012 Jan;4(1):39-47. doi: 10.1002/dta.260. Epub 2011 Mar 18.Drug Test Anal. 2012.PMID: 21416633
Kadi A, Hefnawy M, Julkhuf S, Abounassif M, Mostafa G, Kassem MG, Attia S, Al-Ghamdi A.Kadi A, et al. Among authors: kassem mg.Analyst. 2011 Jul 7;136(13):2858-65. doi: 10.1039/c0an00768d. Epub 2011 May 24.Analyst. 2011.PMID: 21607283
el-Dine SA, Kassem MG, Soliman FS, Saudi MN, Kader O.el-Dine SA, et al. Among authors: kassem mg.Farmaco. 1991 Oct;46(10):1179-93.Farmaco. 1991.PMID: 1815580