1. A case of paroxysmal auricular tachycardia with sino-auricular and atrioventricular block;Laage;Acta Med Scand,1946
2. Depression of cardiac pacemakers by premature impulses;Pick;Amer Heart J,1951
3. Schott E: Ueber vorhofsystoneinausfal, Munch Med Wschr 59:292, 1912, cited by Greenwood RJ and Finkelstein D, ref 11
4. Taquicardia paroxistica auricular com bloqueio sinoauricular;Mesquita;Rev Paul Med,1947
5. Postinfluenzal sinus-nodal block;Parsonnet;J Lab Clin Med,1930