 - Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, ventricular cardiac arrhythmia, myocardial infarction within the previous 6 months, dyspnea at rest, active GI bleeding or ulcer disease, diabetes mellitus, or psychiatric illnesssocial situations that would limit compliance with study requirements. 