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Open-Access Journal
Editorial
Simon R Bramhall, Moustafa M Mourad 
World J Gastroenterol 25(48):6876-6879. Published online Dec 28, 2019. doi: 10.3748/wjg.v25.i48.6876
Opinion Review
Aniruddh Setya, Priyanka Nair, Sam Xianjun Cheng 
World J Gastroenterol 25(48):6880-6889. Published online Dec 28, 2019. doi: 10.3748/wjg.v25.i48.6880
Basic Study
Guo-Min Liu, Xuan Ji, Tian-Cheng Lu, Li-Wei Duan, Wen-Yuan Jia, Yun Liu, Mao-Lei Sun, Yun-Gang Luo 
World J Gastroenterol 25(48):6890-6901. Published online Dec 28, 2019. doi: 10.3748/wjg.v25.i48.6890
Case Control Study
Yong-Lian Zeng, Zhen-Ya Guo, Hui-Zhao Su, Fu-Di Zhong, Ke-Qing Jiang, Guan-Dou Yuan 
World J Gastroenterol 25(48):6902-6915. Published online Dec 28, 2019. doi: 10.3748/wjg.v25.i48.6902
Retrospective Study
Christopher P Rice, Krishnamurthy B Vaishnavi, Celia Chao, Daniel Jupiter, August B Schaeffer, Whitney R Jenson, Lance W Griffin, William J Mileski 
World J Gastroenterol 25(48):6916-6927. Published online Dec 28, 2019. doi: 10.3748/wjg.v25.i48.6916
Observational Study
Lorenzo Ridola, Alessio Farcomeni, Stefania Gioia, Davide Rosati, Oliviero Riggio, Silvia Nardelli 
World J Gastroenterol 25(48):6928-6938. Published online Dec 28, 2019. doi: 10.3748/wjg.v25.i48.6928
Prospective Study
Lucie Benešová, Tereza Hálková, Renata Ptáčková, Anastasiya Semyakina, Kateřina Menclová, Jiří Pudil, Miroslav Ryska, Miroslav Levý, Jaromír Šimša, Filip Pazdírek, Jiří Hoch, Milan Blaha, Marek Minárik 
World J Gastroenterol 25(48):6939-6948. Published online Dec 28, 2019. doi: 10.3748/wjg.v25.i48.6939
Case Report
Shinichi Morita, Kenya Kamimura, Hiroyuki Abe, Yukari Watanabe-Mori, Chiyumi Oda, Takamasa Kobayashi, Yoshihisa Arao, Yusuke Tani, Riuko Ohashi, Yoichi Ajioka, Shuji Terai 
World J Gastroenterol 25(48):6949-6958. Published online Dec 28, 2019. doi: 10.3748/wjg.v25.i48.6949
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