1. Cardiac pacemaker potentials at different extraand intracellular;Vassalle, M.;Am J Physiol,1965
2. Effect;Gettes, L.S.; Surawicz, B.; Shiue, J.C.;Am J Physiol; quinidine on QRS duration and ventricular action potential
3. Relation of electrolyte disturbances to cardiac arrhythmias;Fisch, C.;Circulation,1973
4. Helfant, R.H. Hypokalaemia and arrhythmias. Am J Med 1986, 80: 13-22.
5. The electrocardiographic pattern of hypopotassemia with and without hypocalcemia;Surawicz, B.; Lepeschkin, E.;Circulation