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Open-Access Journal
Frontier
Jose Maria Huguet, Luis Ferrer-Barceló, Patrícia Suárez, Eva Sanchez, Jose David Prieto, Victor Garcia, Javier Sempere 
World J Gastroenterol 28(5):502-516. Published online Feb 7, 2022. doi: 10.3748/wjg.v28.i5.502
Minireviews
Basic Study
Yi-Ming Chen, Ying Li, Xin Wang, Ze-Lan Wang, Jun-Jie Hou, Shuai Su, Wei-Long Zhong, Xin Xu, Jie Zhang, Bang-Mao Wang, Yu-Ming Wang 
World J Gastroenterol 28(5):532-546. Published online Feb 7, 2022. doi: 10.3748/wjg.v28.i5.532
Ishrat Parveiz Bhat, Tahseen Bilal Rather, Irfan Maqbool, Gowhar Rashid, Kulsum Akhtar, Gulzar A Bhat, Fazl Q Parray, Besina Syed, Ishrat Younas Khan, Mohsin Kazi, Muhammad D Hussain, Mudassar Syed 
World J Gastroenterol 28(5):547-569. Published online Feb 7, 2022. doi: 10.3748/wjg.v28.i5.547
Retrospective Cohort Study
Arunkumar Krishnan, Laura Prichett, Xueting Tao, Saleh A Alqahtani, James P Hamilton, Esteban Mezey, Alexandra T Strauss, Ahyoung Kim, James J Potter, Po-Hung Chen, Tinsay A Woreta 
World J Gastroenterol 28(5):570-587. Published online Feb 7, 2022. doi: 10.3748/wjg.v28.i5.570
Case Report
Koh Fukushi, Kenichi Goda, Hitoshi Kino, Masayuki Kondo, Mimari Kanazawa, Ken Kashima, Akira Kanamori, Keiichiro Abe, Tsunehiro Suzuki, Keiichi Tominaga, Hidetsugu Yamagishi, Atsushi Irisawa 
World J Gastroenterol 28(5):594-601. Published online Feb 7, 2022. doi: 10.3748/wjg.v28.i5.594
Letter to the Editor