Abstract
Summary
1. A table of values is presented for the electrocardiogram of the average normal laboratory dog; trained, un-anesthetized, and in the supine position, based on data from 62 tracings on 30 dogs. 2. Data obtained from 10 serial tracings on each of 3 dogs indicates a variation within the same animal not significantly different from that obtaining among different animals. 3. It is recommended that to establish the normal electrocardiogram of a dog a mean of 3 tracings taken at different times be used to reduce the effect of the occasional extreme value.
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