1. Resuscitation of the heart in ventricular standstill by external electrical stimulation;Zoll;N. Engl. J. Med.,1952
2. The treatment of complete heart block by the combined use of a myocardial electrode and an artificial pacemaker;Weirich;Surg. Forum,1957
3. Intracardiac stimulation for complete heart block;Lagergren;Acta Chir. Scand.,1963
4. Five years' clinical experience with an implanted pacemaker; an appraisal;Chardack;Surgery,1965
5. A transistorized self-contained implantable pacemaker for the long term correction of complete heart block;Chardack;Surgery,1960