APA (7th ed.) Citation

D, Z., A, A., R, C., A, A., NB, T., W, Y., . . . HB, R. (2021). Identifying a Heart Rate Recovery Criterion After a 6-Minute Walk Test in COPD. International journal of chronic obstructive pulmonary disease, 16, 2545. https://doi.org/10.2147/COPD.S311572

Chicago Style (17th ed.) Citation

D, Zhao, et al. "Identifying a Heart Rate Recovery Criterion After a 6-Minute Walk Test in COPD." International Journal of Chronic Obstructive Pulmonary Disease 16 (2021): 2545. https://doi.org/10.2147/COPD.S311572.

MLA (9th ed.) Citation

D, Zhao, et al. "Identifying a Heart Rate Recovery Criterion After a 6-Minute Walk Test in COPD." International Journal of Chronic Obstructive Pulmonary Disease, vol. 16, 2021, p. 2545, https://doi.org/10.2147/COPD.S311572.

Warning: These citations may not always be 100% accurate.