Helby, A.-G. A. E.-. (2001). Abdel-Ghany A EI-Helby Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Al-Azhar University, Nasr City, Cairo, Egypt. Biological Sciences - PJSIR, 44(3), 121–126. Retrieved from https://v2.pjsir.org/index.php/biological-sciences/article/view/1895