History of myocardial infarction =<  months, or congestive heart failure requiring use of ongoing maintenance therapy for life-threatening ventricular arrhythmias
History of myocardial infarction =<  months, or congestive heart failure requiring use of ongoing maintenance therapy for life-threatening ventricular arrhythmias
History of myocardial infarction =<  months, or congestive heart failure requiring use of ongoing maintenance therapy for life-threatening ventricular arrhythmias
Patients with a history of myocardial infarction or unstable angina =<  months prior to registration or congestive heart failure (CHF) requiring use of ongoing maintenance therapy, or life-threatening ventricular arrhythmias
History of myocardial infarction =<  months prior to registration, severe/unstable angina, systematic congestive heart failure (CHF) New York Heart Association classification III or IV or CHF requiring use of ongoing maintenance therapy for life-threatening ventricular arrhythmias
History of myocardial infarction =<  months prior to registration, or congestive heart failure requiring use of ongoing maintenance therapy for life-threatening ventricular arrhythmias
History of myocardial infarction =<  months, or congestive heart failure requiring use of ongoing maintenance therapy for life-threatening ventricular arrhythmias
History of myocardial infarction =<  months prior to registration, or congestive heart failure requiring use of ongoing maintenance therapy for life-threatening ventricular arrhythmias
History of myocardial infarction =<  months, or congestive heart failure requiring use of ongoing maintenance therapy for life-threatening ventricular arrhythmias
History of myocardial infarction =<  months, or congestive heart failure requiring use of ongoing maintenance therapy for life-threatening ventricular arrhythmias
History of myocardial infarction =<  months prior to registration, or congestive heart failure requiring use of ongoing maintenance therapy for life-threatening ventricular arrhythmias
History of myocardial infarction =<  days prior to registration or congestive heart failure requiring use of ongoing maintenance therapy for life-threatening ventricular arrhythmias
History of myocardial infarction =<  months prior to registration, or congestive heart failure requiring use of ongoing maintenance therapy for life-threatening ventricular arrhythmias
History of myocardial infarction ?  months prior to registration, or congestive heart failure requiring use of ongoing maintenance therapy for life-threatening ventricular arrhythmias
History of myocardial infarction =<  days ( months), or congestive heart failure requiring use of ongoing maintenance therapy for life-threatening ventricular arrhythmias
History of myocardial infarction =<  months, or congestive heart failure requiring use of ongoing maintenance therapy for life-threatening ventricular arrhythmias
History of myocardial infarction =<  months, or congestive heart failure requiring use of ongoing maintenance therapy for life-threatening ventricular arrhythmias
Absence of history of myocardial infarction =<  months, or congestive heart failure requiring use of ongoing maintenance therapy for life-threatening ventricular arrhythmias
History of myocardial infarction =<  months prior to registration, or congestive heart failure requiring use of ongoing maintenance therapy for life-threatening ventricular arrhythmias
History of myocardial infarction =<  months prior to registration, or congestive heart failure requiring use of ongoing maintenance therapy for life-threatening ventricular arrhythmias
History of myocardial infarction =<  days ( months), or congestive heart failure requiring use of ongoing maintenance therapy for life-threatening ventricular arrhythmias
History of myocardial infarction =<  days prior to registration, or congestive heart failure requiring use of ongoing maintenance therapy for life-threatening ventricular arrhythmias
History of myocardial infarction =<  days ( months), or congestive heart failure requiring use of ongoing maintenance therapy for life-threatening ventricular arrhythmias
History of myocardial infarction =<  months prior to registration, or congestive heart failure requiring use of ongoing maintenance therapy for life-threatening ventricular arrhythmias
Clinically significant cardiac disease, especially history of myocardial infarction =<  months, or congestive heart failure (New York Heart Association [NYHA] classification III or IV) requiring use of ongoing maintenance therapy for life-threatening ventricular arrhythmias
History of myocardial infarction =<  months from registration, or congestive heart failure requiring use of ongoing maintenance therapy for life threatening ventricular arrhythmias
History of myocardial infarction =<  months, or congestive heart failure requiring use of ongoing maintenance therapy for life-threatening ventricular arrhythmias
History of myocardial infarction =<  months prior to registration, unstable angina, or congestive heart failure requiring use of ongoing maintenance therapy for life-threatening ventricular arrhythmias
History of myocardial infarction =<  days prior to registration, or congestive heart failure requiring use of ongoing maintenance therapy for life-threatening ventricular arrhythmia
History of myocardial infarction =<  months, or congestive heart failure requiring use of ongoing maintenance therapy for life-threatening ventricular arrhythmias