APA (7th ed.) Citation

Guan, W., Liang, W., He, J., & Zhong, N. (2020). Cardiovascular comorbidity and its impact on patients with COVID-19. The European respiratory journal, 55(6), 2001227. https://doi.org/10.1183/13993003.01227-2020

Chicago Style (17th ed.) Citation

Guan, Wei-jie, Wen-hua Liang, Jian-xing He, and Nan-shan Zhong. "Cardiovascular Comorbidity and Its Impact on Patients with COVID-19." The European Respiratory Journal 55, no. 6 (2020): 2001227. https://doi.org/10.1183/13993003.01227-2020.

MLA (9th ed.) Citation

Guan, Wei-jie, et al. "Cardiovascular Comorbidity and Its Impact on Patients with COVID-19." The European Respiratory Journal, vol. 55, no. 6, 2020, p. 2001227, https://doi.org/10.1183/13993003.01227-2020.