Narrow complex tachycardia with alternating R-R intervals during physical stress: double ventricular excitation.
Laszlo
Roman
R
Department of cardiology, University of Tuebingen, Germany. roman.laszlo@med.uni-tuebingen.de
Weig
Hans-Joerg
HJ
Weretka
Slawomir
S
Schreieck
Juergen
J