Usefulness of the Electrocardiographic P-Wave Axis as a Predictor of Atrial Fibrillation.
Rangel MO, O'Neal WT, Soliman EZ. Usefulness of the Electrocardiographic P-Wave Axis as a Predictor of Atrial Fibrillation. Am J Cardiol. 2016 Jan 01; 117(1):100-4.