Mohamed Yafout, Amine Ousaid, Ibrahim Sbai El Otmani, Youssef Khayati and Amal Ait Haj Said 2020. Natural products from the traditional Moroccan pharmacopoeia: A potential lead for the prevention and treatment of COVID-19 . International Journal of Research in Pharmaceutical Sciences. 11, (SPL 1) (Nov. 2020), 1278–1285.