Circulation 1979 Feb;59(2):356-63.
Clinically practical lead systems for improved electrocardiography:
comparison with precordial grids and conventional lead systems.
Lux RL, Burgess MJ, Wyatt RF, Evans AK, Vincent GM, Abildskov JA,
NIL
Am J Cardiol 1982 Jul;50(1):122-8.
Evaluation of normal variations in S-T segment patterns by body surface
isopotential mapping: S-T segment elevation in absence of heart disease.
Mirvis DM,
NIL