Eltigani K, S Wanasi E, Ahmed AS, Elkhawad AO. Difficulties Faced By Pharmaceutical Industries Associated With COVID-19 Pandemic in Obtaining Raw Materials for Production of Certain Drugs in Sudan in 2021 . International Journal of Pharmaceutical and Bio Medical Science [Internet]. 2023Jun.17 [cited 2024Nov.24];3(06):281-3. Available from: https://ijpbms.com/index.php/ijpbms/article/view/298