[Effect of various concentrations of calcium ions and the frequency of stimulation of papillary muscles of the heart of mature and old rats on its contractile capability].
Efimov
D A
DA
D000818:Animals; D002118:Calcium / Q000502:physiology*; D009200:Myocardial Contraction; D010210:Papillary Muscles / Q000502:physiology*; D051381:Rats; D011919:Rats, Inbred Strains
D002118:Calcium
Vliianie razlichnykh kontsentratsiĭ ionov kal'tsiia i chastoty stimuliatsii papilliarnoĭ myshtsy serdtsa vzorslykh i starykh krys na ee sokratitel'nuiu sposobnost'.