[1] Al-Azhar University,Botany and Microbiology Department, Faculty of Science (Boys)
[2] Al-Maarif University College,Department of Medical Laboratory Techniques
[3] Pharmaceutical and Drug Industries Research Institute,Therapeutic Chemistry Department
[4] National Research Centre,Chemistry of Natural and Microbial Products Department
[5] Pharmaceutical and Drug Industries Research Institute,undefined
[6] National Research Centre,undefined