title: Commentary on: cardiac power index: staging heart failure for mechanical circulatory support.
mesh_terms: D002302:Cardiac Output / Q000502:physiology*; D005260:Female; D006321:Heart / Q000503:physiopathology*; D006333:Heart Failure / Q000503:physiopathology* / Q000628:therapy*; D006353:Heart-Assist Devices; D006801:Humans; D008297:Male