“Role of Nigella Sativa (Black Cumin Seeds) As an Adjunct Therapy in Treating Severe and Critical COVID -19 Infection Compared to Those With Standard Therapy: An Open Label Randomized Clinical Trial”. Bangladesh Critical Care Journal 11, no. 2 (October 4, 2023): 75–82. Accessed June 29, 2026. https://www.banglajol.info/index.php/BCCJ/article/view/69187.