BPG is committed to discovery and dissemination of knowledge
Open-Access Journal
Review
Naoki Tanaka, Takefumi Kimura, Naoyuki Fujimori, Tadanobu Nagaya, Michiharu Komatsu, Eiji Tanaka 
World J Gastroenterol 25(2):163-177. Published online Jan 14, 2019. doi: 10.3748/wjg.v25.i2.163
Minireviews
Basic Study
Retrospective Study
Observational Study
Write to the Help Desk