Observations on D. C. and very low frequency components of the electrocardiogram.
D000818:Animals; D003327:Coronary Disease / Q000503:physiopathology; D004285:Dogs; D004562:Electrocardiography; D007511:Ischemia / Q000503:physiopathology; D011189:Potassium Chloride / Q000494:pharmacology; D011817:Rabbits; D012965:Sodium Chloride / Q000494:pharmacology
D012965:Sodium Chloride; D011189:Potassium Chloride