TY - BOOK AU - Rubin,Ira Lloyd AU - Frieden,Julian TI - ECG case studies: [by] Ira L. Rubin and Julian Frieden. 100 challenging electrocardiograms PY - 1969/// CY - Flushing, N. Y. PB - Medical Examination Pub. Co. KW - Electrocardiography N1 - Many of these cases appeared in the New York State journal of medicine ER -