pancreatic deficiency symptomspancreatic lipaseexocrine pancreatic deficiencypancreatic amylase deficiencypancreatic elastase deficiencypancreatitis vitamin deficiencypancreatic enzyme deficiency symptomspancreatic triacylglycerol lipasepancreatic lipase functionpancreatic lipase activitypancreatic triglyceride lipasepancreatic lipase digests