title: [The relationship between the speed of cardiac muscle relaxation and the strength and rate of its contractions].
mesh_terms: D000818:Animals; D006168:Guinea Pigs; D006321:Heart / Q000502:physiology*; D006339:Heart Rate; D009119:Muscle Contraction; D009638:Norepinephrine / Q000494:pharmacology; D010210:Papillary Muscles / Q000502:physiology*; D051381:Rats; D013997:Time Factors
chemical_list: D009638:Norepinephrine
vernacular_title: Zavisimost' skorosti rasslableniia serdechnoĭ myshtsy ot sily i chastoty ee sokrashcheniĭ.