APA (7th ed.) Citation

AC, C., HP, G., & D, K. (2020). Treatment of COVID-19: Old tricks for new challenges. Critical care (London, England), 24(1), 91. https://doi.org/10.1186/s13054-020-2818-6

Chicago Style (17th ed.) Citation

AC, Cunningham, Goh HP, and Koh D. "Treatment of COVID-19: Old Tricks for New Challenges." Critical Care (London, England) 24, no. 1 (2020): 91. https://doi.org/10.1186/s13054-020-2818-6.

MLA (9th ed.) Citation

AC, Cunningham, et al. "Treatment of COVID-19: Old Tricks for New Challenges." Critical Care (London, England), vol. 24, no. 1, 2020, p. 91, https://doi.org/10.1186/s13054-020-2818-6.