BPG is committed to discovery and dissemination of knowledge
Open-Access Journal
Editorial
Frontier
Review
Minireviews
Enrique Rodríguez de Santiago, Eduardo Albéniz, Fermin Estremera-Arevalo, Carlos Teruel Sanchez-Vegazo, Vicente Lorenzo-Zúñiga 
World J Gastroenterol 27(39):6601-6614. Published online Oct 21, 2021. doi: 10.3748/wjg.v27.i39.6601
Basic Study
Clinical and Translational Research
Sara Cococcia, Marco Vincenzo Lenti, Caterina Mengoli, Catherine Klersy, Federica Borrelli de Andreis, Matteo Secco, Jihane Ghorayeb, Mariangela Delliponti, Gino Roberto Corazza, Antonio Di Sabatino 
World J Gastroenterol 27(39):6647-6658. Published online Oct 21, 2021. doi: 10.3748/wjg.v27.i39.6647
Retrospective Cohort Study
Observational Study
Prospective Study
Systematic Reviews
Letter to the Editor