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Topic Highlight
Mariabeatrice Principi, Nicoletta Cassano, Antonella Contaldo, Andrea Iannone, Giuseppe Losurdo, Michele Barone, Mario Mastrolonardo, Gino Antonio Vena, Enzo Ierardi, Alfredo Di Leo 
World J Gastroenterol 22(20):4802-4811. Published online May 28, 2016. doi: 10.3748/wjg.v22.i20.4802
Review
Basic Study
Retrospective Cohort Study
Retrospective Study
Observational Study
Madhusudhan R Sanaka, Umar Hayat, Prashanthi N Thota, Ramprasad Jegadeesan, Monica Ray, Scott L Gabbard, Neha Wadhwa, Rocio Lopez, Mark E Baker, Sudish Murthy, Siva Raja 
World J Gastroenterol 22(20):4918-4925. Published online May 28, 2016. doi: 10.3748/wjg.v22.i20.4918
Prospective Study
Anita Kiani, Vanessa Brun, Fabrice Lainé, Bruno Turlin, Jeff Morcet, Sophie Michalak, Antonia Le Gruyer, Ludivine Legros, Edouard Bardou-Jacquet, Yves Gandon, Romain Moirand 
World J Gastroenterol 22(20):4926-4935. Published online May 28, 2016. doi: 10.3748/wjg.v22.i20.4926
Systematic Reviews
Case Report