Electrocardiogram helmet sign: an adverse clinical prognosis.
Department of Cardiology, Maimonides Medical Center, Brooklyn, NY, USA vnamana@maimonidesmed.org.
V
V
Namana
Department of Cardiology, Maimonides Medical Center, Brooklyn, NY, USA.
J
J
Patel
Department of Medicine, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
N
N
Tripathi
Department of Medicine, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
P
P
Mathur