APA-referens (7:e uppl.)

Xu, J., Wang, W., Ye, H., Pang, W., Pang, P., Tang, M., . . . Liang, Y. (2021). A predictive score for progression of COVID-19 in hospitalized persons. npj Primary Care Respiratory Medicine, 31(1), 1. https://doi.org/10.1038/s41533-021-00244-w

Chicago-referens (17:e uppl.)

Xu, Jingbo, et al. "A Predictive Score for Progression of COVID-19 in Hospitalized Persons." Npj Primary Care Respiratory Medicine 31, no. 1 (2021): 1. https://doi.org/10.1038/s41533-021-00244-w.

MLA-referens (9:e uppl.)

Xu, Jingbo, et al. "A Predictive Score for Progression of COVID-19 in Hospitalized Persons." Npj Primary Care Respiratory Medicine, vol. 31, no. 1, 2021, p. 1, https://doi.org/10.1038/s41533-021-00244-w.