APA (7th ed.) Citation

Ni, J., Yan, P., Liu, S., Hu, Y., Yang, K., Song, B., & Lei, J. (2019). Diagnostic accuracy of transthoracic echocardiography for pulmonary hypertension: A systematic review and meta-analysis. BMJ open, 9(12), e033084. https://doi.org/10.1136/bmjopen-2019-033084

Chicago Style (17th ed.) Citation

Ni, Jin-Rong, Pei-Jing Yan, Shi-Dong Liu, Yuan Hu, Ke-Hu Yang, Bing Song, and Jun-Qiang Lei. "Diagnostic Accuracy of Transthoracic Echocardiography for Pulmonary Hypertension: A Systematic Review and Meta-analysis." BMJ Open 9, no. 12 (2019): e033084. https://doi.org/10.1136/bmjopen-2019-033084.

MLA (9th ed.) Citation

Ni, Jin-Rong, et al. "Diagnostic Accuracy of Transthoracic Echocardiography for Pulmonary Hypertension: A Systematic Review and Meta-analysis." BMJ Open, vol. 9, no. 12, 2019, p. e033084, https://doi.org/10.1136/bmjopen-2019-033084.