Cite
The prognostic significance of horizontal plane QRS axis in elderly heart failure
MLA
Xiao, Han B., et al. “The Prognostic Significance of Horizontal Plane QRS Axis in Elderly Heart Failure.” International Journal of Cardiology, vol. 106, no. 2, Jan. 2006, pp. 196–200. EBSCOhost, https://doi.org/10.1016/j.ijcard.2005.01.045.
APA
Xiao, H. B., McCan, S., & Kaufman, B. (2006). The prognostic significance of horizontal plane QRS axis in elderly heart failure. International Journal of Cardiology, 106(2), 196–200. https://doi.org/10.1016/j.ijcard.2005.01.045
Chicago
Xiao, Han B., Steven McCan, and Brian Kaufman. 2006. “The Prognostic Significance of Horizontal Plane QRS Axis in Elderly Heart Failure.” International Journal of Cardiology 106 (2): 196–200. doi:10.1016/j.ijcard.2005.01.045.