Figure 3
From: "Giant R wave" electrocardiogram pattern during exercise treadmill test: A case report

(a) through (c) Evolution of electrocardiograms to normal status after nitroglycerin administration.
From: "Giant R wave" electrocardiogram pattern during exercise treadmill test: A case report
(a) through (c) Evolution of electrocardiograms to normal status after nitroglycerin administration.