Helby A-GAE-. Abdel-Ghany A EI-Helby Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Al-Azhar University, Nasr City, Cairo, Egypt. Pakistan Journal of Scientific & Industrial Research [Internet]. 2001 Jun. 18 [cited 2025 Jul. 29];44(3):121-6. Available from: https://biostaging.pjsir.org/index.php/biological-sciences/article/view/1895