1. Tick Tock The American Journal of Medicine
David J. Mener, MD, MPH, Andrew S. Mener, BA, James P. Daubert, MD, Michael Fong, MD 
The American Journal of Medicine 
Volume 124, Issue 4, Pages (April 2011)
DOI: /j.amjmed
Copyright © 2011 Elsevier Inc. Terms and Conditions

2. Figure 1
This electrocardiogram was obtained when the patient arrived in the Emergency Department.
The American Journal of Medicine  , DOI: ( /j.amjmed )
Copyright © 2011 Elsevier Inc. Terms and Conditions

3. Figure 2
A second electrocardiogram was ordered when the patient said that his palpitations were worsening.
The American Journal of Medicine  , DOI: ( /j.amjmed )
Copyright © 2011 Elsevier Inc. Terms and Conditions