1. Incomplete heart block produced by changes in posture;Holmes;Amer. Heart. J.,1945
2. Electrocardiographic observations on 650 Finnish athletes;Klemola;Ann. Med. Fenn.,1951
3. Complete heart block in German measles;Logue;Amer. Heart. J.,1945
4. Alternation in P-R-interval associated with change in posture;Manning;Amer. Heart J.,1945
5. Transient heart block in congenital heart disease;Waldman;Amer. Heart. J.,1945