Poincar? surface profiles of RR intervals: a novel noninvasive method for the evaluation of preferential AV nodal conduction during atrial fibrillation.
Climent AM, de la Salud Guillem M, Husser D, Castells F, Millet J, Bollmann A. Poincar? surface profiles of RR intervals: a novel noninvasive method for the evaluation of preferential AV nodal conduction during atrial fibrillation. IEEE Trans Biomed Eng. 2009 Feb; 56(2):433-42.