Awad, E., Sirag, N., Awadallah, A., & Ahmed, E. (2014). Investigation of Anti-nociceptive Activity of Neem (Azadirachta indica) A. Juss on Acetic Acid Induced Writhing in Rats. Gezira Journal Of Health Sciences, 10(1). Retrieved from http://journals.uofg.edu.sd/index.php/gjhs/article/view/339