BPG is committed to discovery and dissemination of knowledge
Open-Access Journal
Evidence Review
Review
Rajiv Heda, Masahiko Yazawa, Michelle Shi, Madhu Bhaskaran, Fuad Zain Aloor, Paul J Thuluvath, Sanjaya K Satapathy 
World J Gastroenterol 27(17):1864-1882. Published online May 7, 2021. doi: 10.3748/wjg.v27.i17.1864
Ademar Dantas Cunha Júnior, Arinilda Campos Bragagnoli, Felipe Osório Costa, José Barreto Campello Carvalheira 
World J Gastroenterol 27(17):1883-1904. Published online May 7, 2021. doi: 10.3748/wjg.v27.i17.1883
Cinzia Maria Chinnici, Giovanna Russelli, Matteo Bulati, Vitale Miceli, Alessia Gallo, Rosalia Busà, Rosaria Tinnirello, Pier Giulio Conaldi, Gioacchin Iannolo 
World J Gastroenterol 27(17):1905-1919. Published online May 7, 2021. doi: 10.3748/wjg.v27.i17.1905
Minireviews
Basic Study
Retrospective Study
Observational Study