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This little book, profusely illustrated with photographs and diagrams, tells in one-two-three order how to handle the various types of electrocardiogram and just how to proceed in taking different leads. Sources of error and pitfalls in operating the machines are discussed. The comment may be made that the expert does not need such a vade mecum, whereas an uninstructed person could hardly be expected to proceed without supervised experience.
Electrocardiographic Technique.. Arch Intern Med (Chic). 1950;86(2):317. doi:10.1001/archinte.1950.00230140153022