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From April, 1958, to November, 1958, the electrocardiographic studies were performed for 79 cases of sick children in our hospital. These sick children were those of 8 cases of poliomyelitis, 18 cases of acute or chronic nephritis, 19 cases of anemia and 34 cases of tuberculosis. (Table 1) Standard extremity, unipolar limb and precordial leads were made on groups of... |