About the Authors

Amira Humeida

Elneelain University

Ihsan M. Osman

AlzaemAlazhariUniversity

Hiba A Awooda

Department of Physiology, Faculty of Medicine and Heath Sciences, Alneelain University, Khartoum, Sudan

Manal M. ElTahir

Military Hospital

Corresponding Author

Email: amirahumeida@yahoo.com