<qa>  What is the maximum amount of patients on chronic steroid therapy?Number of Patients 20 5 in each arm Eligibility Criteria: Patients over 18 years of age, who have histologic andor radiologic evidence of pancreatic adenocarcinoma in the head of the pancreas, who have been deemed resectable, and who are able to give informed consent, will be eligible Exclusion criteria would include Active uncontrolled bacterial, viral or fungal infection within 21 days of study entry OR Inability to take oral, nasojejunal or jejunostomy tube nutritional supplements OR patients on chronic steroid therapy i.e. greater than 3 months 