Elements of Electrocardiographic Interpretation.

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This illustrated booklet is presented chiefly for the beginner in cardiac physiology and the physician whose specialty is outside this field. It consists of a table of characteristics of the normal electrocardiographic cycle and thirty-eight descriptive illustrations of electrocardiographic deviations from the normal. A case history of each has purposely been omitted. The appendix contains a procedure for reading an electrocardiogram.