APA (7th ed.) Citation

Tzanis, G., Charitos, C., Nanas, S., Redfors, B., & Généreux, P. (2017). Letter by Tzanis et al Regarding Article, "Stress Testing in Asymptomatic Aortic Stenosis". Circulation, 136(19), 1866. https://doi.org/10.1161/CIRCULATIONAHA.117.029575

Chicago Style (17th ed.) Citation

Tzanis, Georgios, Christos Charitos, Serafim Nanas, Björn Redfors, and Philippe Généreux. "Letter by Tzanis Et Al Regarding Article, "Stress Testing in Asymptomatic Aortic Stenosis"." Circulation 136, no. 19 (2017): 1866. https://doi.org/10.1161/CIRCULATIONAHA.117.029575.

MLA (9th ed.) Citation

Tzanis, Georgios, et al. "Letter by Tzanis Et Al Regarding Article, "Stress Testing in Asymptomatic Aortic Stenosis"." Circulation, vol. 136, no. 19, 2017, p. 1866, https://doi.org/10.1161/CIRCULATIONAHA.117.029575.