The electrocardiograph became an essential component of cardiac practice and was the subject of early standardization efforts by British and American cardiac societies.
When the Cardiac Society of Great Britain and Ireland met for the first time its initial task was to set up a committee to define the best location for a single chest electrocardiograph lead. The recommen- dations were agreed with the American Heart Asso- ciation and a joint report was published in both countries and republished in the first issue of the British Heart Journal.' At that time the electro- cardiograph was the specialised investigation in car- diology; indeed it was the first clinical tool to become an essential component of cardiac practice since the introduction of the stethoscope, ophthalmoscope, and sphygmomanometer. An indication of its importance is its predominance in the first vol- ume of the British Heart Journal, published in 1939.
D M Krikler (Sun,) reported a editorial. The electrocardiograph became an essential component of cardiac practice and was the subject of early standardization efforts by British and American cardiac societies.
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