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Pretreatment Prognostic Nutritional Index (PNI) as a Prognostic Factor in Patients with Biliary Tract Cancer: A Meta-Analysis
Published in Nutrition and Cancer, 2021
Xiaoyan Lv, Zongxin Zhang, Wenbin Yuan
We retrieved relevant literature through searching PubMed, Web of Science, Embase, and the Cochrane Library. It has been updated on December 7, 2019. Searching items were as follows: (prognostic nutritional index OR PNI) AND (bile duct cancer OR bile duct neoplasms OR biliary tract cancer OR gallbladder cancer OR cholangiocarcinoma). Publication language was restricted to English. The reference lists of retrieved literatures were also checked to identify potential inclusions.