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Basic Study
Michael Gock, Christina S Mullins, Carina Bergner, Friedrich Prall, Robert Ramer, Anja Göder, Oliver H Krämer, Falko Lange, Bernd J Krause, Ernst Klar, Michael Linnebacher 
World J Gastroenterol 24(43):4880-4892. Published online Nov 21, 2018. doi: 10.3748/wjg.v24.i43.4880
Retrospective Cohort Study
Retrospective Study
Carolina Rosal Teixeira de Souza, Marcelli Carolini Alves Almeida, André Salim Khayat, Emerson Lucena da Silva, Paulo Cardoso Soares, Luiz Cláudio Chaves, Rommel Mario Rodríguez Burbano 
World J Gastroenterol 24(43):4928-4938. Published online Nov 21, 2018. doi: 10.3748/wjg.v24.i43.4928
Qi-Xiong Qin, Xue-Min Cheng, Li-Zhi Lu, Yun-Fei Wei, Da-Cheng Wang, Hai-Hua Li, Guo-Hui Li, Hong-Bin Liang, Sheng-Yu Li, Li Chen, Zhi-Jian Liang 
World J Gastroenterol 24(43):4950-4958. Published online Nov 21, 2018. doi: 10.3748/wjg.v24.i43.4950