APA (7th ed.) Citation

SW, S., JR, L., & BJ, M. (2011). Takotsubo (stress) cardiomyopathy. Circulation, 124(18), e460. https://doi.org/10.1161/circulationaha.111.052662

Chicago Style (17th ed.) Citation

SW, Sharkey, Lesser JR, and Maron BJ. "Takotsubo (stress) Cardiomyopathy." Circulation 124, no. 18 (2011): e460. https://doi.org/10.1161/circulationaha.111.052662.

MLA (9th ed.) Citation

SW, Sharkey, et al. "Takotsubo (stress) Cardiomyopathy." Circulation, vol. 124, no. 18, 2011, p. e460, https://doi.org/10.1161/circulationaha.111.052662.