1. Observer variation in reports on electrocardiograms;Davis;Brit. Heart J.,1958
2. Observer error and variation in the interpretation of electrocardiograms in an epidemiological study of coronary heart disease;Acheson;Brit. J. Prev. Soc. Med.,1960
3. Observer interpretation of electrocardiograms;Epstein;J. A. M. A.,1961
4. The electrocardiogram and its interpretation: A study of reports by twenty physicians on a set of one hundred electrocardiograms;Segall;Canad. M. A. J.,1960
5. Le telecardiogramme;Einthoven;Arch. Internat. de Physiol.,1906