BPG is committed to discovery and dissemination of knowledge
Open-Access Journal
Editorial
Review
Teresa Arrigo, Salvatore Leonardi, Caterina Cuppari, Sara Manti, Angela Lanzafame, Gabriella D’Angelo, Eloisa Gitto, Lucia Marseglia, Carmelo Salpietro 
World J Gastroenterol 21(2):384-395. Published online Jan 14, 2015. doi: 10.3748/wjg.v21.i2.384
Mohamed Bejaoui, Eirini Pantazi, Emma Folch-Puy, Pedro M Baptista, Agustín García-Gil, René Adam, Joan Roselló-Catafau 
World J Gastroenterol 21(2):396-407. Published online Jan 14, 2015. doi: 10.3748/wjg.v21.i2.396
Minireviews
Basic Study
Case Control Study
Retrospective Study
Shuhei Komatsu, Daisuke Ichikawa, Mahito Miyamae, Hiroki Shimizu, Hirotaka Konishi, Atsushi Shiozaki, Hitoshi Fujiwara, Kazuma Okamoto, Mitsuo Kishimoto, Eigo Otsuji 
World J Gastroenterol 21(2):549-555. Published online Jan 14, 2015. doi: 10.3748/wjg.v21.i2.549
Clinical Trials Study
Bhadravathi Marigowda Shivakumar, Harish Rotti, Thanvanthri Gururajan Vasudevan, Aswath Balakrishnan, Sanjiban Chakrabarty, Ganesh Bhat, Lakshmi Rao, Cannanore Ganesh Pai, Kapaettu Satyamoorthy 
World J Gastroenterol 21(2):616-622. Published online Jan 14, 2015. doi: 10.3748/wjg.v21.i2.616
Observational Study
Prospective Study
Er-Li Gu, Yi-Qi Yu, Jia-Li Wang, Yan-Yan Ji, Xiu-Yun Ma, Qing Xie, Hong-Ying Pan, Shan-Min Wu, Jun Li, Cheng-Wei Chen, Xiao-Wei Xu, Yue-Er Wang, Guang-Bi Yao, Hong Wang, Wen-Hong Zhang 
World J Gastroenterol 21(2):653-660. Published online Jan 14, 2015. doi: 10.3748/wjg.v21.i2.653
Randomized Controlled Trial
Evidence-Based Medicine
Systematic Reviews
Case Report