Belhaj, Souad, and Lahcen Zidane. 2021. “Medicinal Plants Used to Boost Immunity and Decrease the Intensity of Infection Caused by SARS-COV-2 in Morocco”. Ethnobotany Research and Applications 21 (June):1-17. https://ethnobotanyjournal.org/index.php/era/article/view/2495.