[Cyclic nucleotides and the cardiac function].
D000818:Animals; D000242:Cyclic AMP / Q000494:pharmacology*; D006152:Cyclic GMP / Q000494:pharmacology*; D006321:Heart / Q000187:drug effects* / Q000502:physiology; D006801:Humans
D000242:Cyclic AMP; D006152:Cyclic GMP