the expression of the gastrointestinal cancer associated antigen ca 19-9 , defined by the monoclonal antibody 1116 ns 19-9 , was studied by immunoperoxidase staining in routine formalin-fixed , paraffin-embedded tissue sections from normal pancreata , pancreata with pancreatitis and from benign and malignant pancreatic neoplasms .
C0030274
pancreata
C0030305
pancreatitis