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Expression of VEGFR2 on vessels of normal mouse pancreas and orthotopically implanted human pancreatic tumor, L3.6pl. Human pancreatic tumor, L3.6pl, was orthotopically grown in nude mice. Frozen sections of normal pancreas from nontumor bearing mice and L3.6pl tumors were stained with RAFL-1 antibody as described above. Arrows indicate stained blood vessels in both types of tissue. Control rat IgG2a did not stain either of the sections.
