Phosphodiesterase inhibitors.
D002986:Clinical Trials as Topic; D006333:Heart Failure / Q000188:drug therapy*; D006439:Hemodynamics / Q000187:drug effects; D006801:Humans; D010726:Phosphodiesterase Inhibitors / Q000494:pharmacology* / Q000627:therapeutic use
D010726:Phosphodiesterase Inhibitors