BPG is committed to discovery and dissemination of knowledge
Open-Access Journal
Review
Takumi Onoyama, Hiroki Koda, Wataru Hamamoto, Shiho Kawahara, Yuri Sakamoto, Taro Yamashita, Hiroki Kurumi, Soichiro Kawata, Yohei Takeda, Kazuya Matsumoto, Hajime Isomoto 
World J Gastroenterol 28(19):2034-2056. Published online May 21, 2022. doi: 10.3748/wjg.v28.i19.2034
Minireviews
Basic Study
Retrospective Cohort Study
Prospective Study
Mahsa Taghiakbari, Celia Hammar, Mira Frenn, Roupen Djinbachian, Heiko Pohl, Erik Deslandres, Simon Bouchard, Mickael Bouin, Daniel von Renteln 
World J Gastroenterol 28(19):2137-2147. Published online May 21, 2022. doi: 10.3748/wjg.v28.i19.2137
Letter to the Editor