Cita APA (7a ed.)
JE, M. (2009). QRS duration: Problems in its implementation in patients with heart failure. Pacing & Clinical Electrophysiology, 32(7), 918-922.
Cita Chicago Style (17a ed.)
JE, Madias. "QRS Duration: Problems in Its Implementation in Patients with Heart Failure." Pacing & Clinical Electrophysiology 32, no. 7 (2009): 918-922.
Cita MLA (9a ed.)
JE, Madias. "QRS Duration: Problems in Its Implementation in Patients with Heart Failure." Pacing & Clinical Electrophysiology, vol. 32, no. 7, 2009, pp. 918-922.
Precaución: Estas citas no son 100% exactas.