6DEL VILLANO B C, BRENNAN S, BROCK P, et al. Radioimmunometrie assay for a monoclonal antibody-defined tumor marker,CA 19-9 [J]. Clin Chem, 1983,29(3):549-552.
7NAGAHAMA H, OKADA S, OKUSAKA T, et al. Clinieopathological features in misdiagnosed pancreatic carcinoma [J] . Hepato Castroenterology, 1999, 46(29) :2983 - 2985.
8IRIE H, HONDA H, KANEKO K, et al. Comparison of helical CT and MR imaging in detecting and staging small pancreatic adenoearcinoma [J]. Abdom Imaging, 1997,22(4) :429 - 433.