Singh, Rashmi, Anup Kumar, Rajanigandha Tudu, Praveer Munda, and Payal Raina. “Study of Immunity-Boosting Measures and Hydroxychloroquine Against Fight of COVID-19”. New Frontiers in Medicine and Medical Research Vol. 9 (August 24, 2021): 127–131. Accessed June 4, 2026. https://stm.bookpi.org/NFMMR-V9/article/view/3468.