Advanced Heart Failure heart failure Advanced Heart Failure Advanced Heart Failure Advanced Heart Failure heart failure Advanced Heart Failure Advanced Heart Failure American Heart Association Advanced Heart Failure heart failure Advanced Heart Failure Advanced Heart Failure Advanced Heart Failure Advanced Heart Failure Advanced Heart Failure advanced heart failure Advanced Heart Failure American Heart Association became progressively weaker and eventually stopped working Advanced Heart Failure Advanced Heart Failure Advanced Heart Failure heart failure became progressively weaker and eventually stopped working