[ON THE METHOD OF EXAMINING THE EXCITABILITY OF THE HEART].
D000818:Animals; D001001:Anura; D004594:Electrophysiology; D004864:Equipment and Supplies; D006321:Heart; D006334:Heart Function Tests; D006801:Humans; D012106:Research; D014672:Vectorcardiography
ELECTROPHYSIOLOGY; EQUIPMENT AND SUPPLIES; EXPERIMENTAL LAB STUDY; FROGS; HEART FUNCTION TESTS; VECTORCARDIOGRAPHY
K METODIKE ISSLEDOVANIIA VOZBUDIMOSTI SERDTSA.