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analysis, development of final manuscript. learn more SL: background literature search, data analysis. WX: data analysis, background literature search. XLW: research instruction, background literature search. WHZ: research instruction, development of final manuscript.”
“Introduction The incidence of pancreatic carcinoma has increased in recent decades, yet the treatment outcome for this disease remains unsatisfactory. Despite the introduction of new therapeutic techniques combined with aggressive modalities, such as external beam radiotherapy (EBRT) and chemotherapy, the prognosis of pancreatic carcinoma remained to be very poor, with a mortality rate of more than 90% [1]. Only 15% to 20% of patients with pancreatic carcinoma are suitable for resection, and even with resection, long term survival still remains poor [2, 3]. Most of pancreatic carcinoma was diagnosed in the locally advanced or metastatic stage, and the median survival rate was approximately 6 months with palliative treatment.