摘 要: | INTRODUCTION Approximately 5millionAmericanshavechronicheartfailure(HF) .Itisthemostcommoncauseofhospi talizationamongMedicarepatients ,atanannualcostofapproximately$ 12billiondollars1,2 ] .Despiterecenttherapeuticadvances ,thesixyearmortalityrateinpatientswi…
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