1. 69-Year-Old Woman With Rapid Heartbeat
Andrew D. Calvin, MD, MPH, Jeffrey B. Geske, MD, Malcolm R. Bell, MD 
Mayo Clinic Proceedings 
Volume 83, Issue 12, Pages (December 2008)
DOI: /
Copyright © 2008 Mayo Foundation for Medical Education and Research Terms and Conditions

2. FIGURE
Initial single-lead rhythm strip obtained by the emergency medical services team shows wide-complex tachycardia.
Mayo Clinic Proceedings  , DOI: ( / )
Copyright © 2008 Mayo Foundation for Medical Education and Research Terms and Conditions