APA (7th ed.) Citation

PR, S., S, P., & SM, G. (2021). Hydroxychloroquine and Chloroquine in Prophylaxis and Treatment of COVID-19: What Is Known? Journal of pharmacy & bioallied sciences, 13(1), 4. https://doi.org/10.4103/jpbs.JPBS_404_20

Chicago Style (17th ed.) Citation

PR, Shankar, Palaian S, and Gulam SM. "Hydroxychloroquine and Chloroquine in Prophylaxis and Treatment of COVID-19: What Is Known?" Journal of Pharmacy & Bioallied Sciences 13, no. 1 (2021): 4. https://doi.org/10.4103/jpbs.JPBS_404_20.

MLA (9th ed.) Citation

PR, Shankar, et al. "Hydroxychloroquine and Chloroquine in Prophylaxis and Treatment of COVID-19: What Is Known?" Journal of Pharmacy & Bioallied Sciences, vol. 13, no. 1, 2021, p. 4, https://doi.org/10.4103/jpbs.JPBS_404_20.