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A clear understanding of the manner in which disturbances of the cardiac rhythm are produced, and of the meaning of such disturbances, is so important to their intelligent management that I feel justified in presenting this subject, though I have nothing original or new to offer. While this subject has received the attention of many physiologists and clinicians, it is still a mystery to a large proportion of general practitioners, some of those we much respect not hesitating to admit that they "know nothing about it." This apathy cannot be too soon dispelled and it is therefore imperative that practitioners of medicine have this subject so frequently brought to their notice that they will be compelled to study it.
Whether we are ready to admit the correctness of the myogenic theory of cardiac action or not, it must be admitted that studies conducted with this theory as a basis have
SCHULMAN M. THERAPEUTICS OF ABNORMAL HEART RHYTHM. JAMA. 1911;LVII(15):1198-1204. doi:10.1001/jama.1911.04260100024007