[Contractile function of the papillary muscles of the heart of the rat at different ages].
D000367:Age Factors; D000818:Animals; D009200:Myocardial Contraction; D010210:Papillary Muscles / Q000502:physiology*; D051381:Rats; D011919:Rats, Inbred Strains
Sokratitel'naia funktsiia papilliarnoĭ myshtsy serdtsa krys raznogo vozrasta.