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Review
Minireviews
Retrospective Cohort Study
Observational Study
Ana Ponte, Rolando Pinho, Luísa Proença, Joana Silva, Jaime Rodrigues, Mafalda Sousa, João Carlos Silva, João Carvalho 
World J Gastrointest Endosc 9(6):267-272. Published online Jun 16, 2017. doi: 10.4253/wjge.v9.i6.267
Randomized Controlled Trial
Rajvinder Singh, Kuan Loong Cheong, Leonardo Zorron Cheng Tao Pu, Dileep Mangira, Doreen Siew Ching Koay, Carmen Kee, Siew Chien Ng, Rungsun Rerknimitr, Satimai Aniwan, Tiing-Leong Ang, Khean-Lee Goh, Shiaw Hooi Ho, James Yun-Wong Lau 
World J Gastrointest Endosc 9(6):273-281. Published online Jun 16, 2017. doi: 10.4253/wjge.v9.i6.273
Case Report