1. Haemodynamic effect of atrial triggered versus fixed rate pacing at rest and during exercise in complete heart block;Karlöf;Acta Med Scand,1975
2. Pacemaker-induced cardiovascular failure;Haas;Am J Cardiol,1974
3. Parsonnet V. North American cardiac pacing survey. In: Proceedings of the VI International Pacemaker Symposium (Montreal), Claude Meere (ed) Mt Kisco, NY: PACE 1979; 41-43
4. Atrial programmed pacing today;Kleinert,1979
5. A clinical appraisal of atrial transport function;Burchell;The Lancet,1964