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Open-Access Journal
Review
Thomas Zheng Jie Teng, Xuan Rong Thong, Kai Yuan Lau, Sunder Balasubramaniam, Vishal G Shelat 
World J Gastrointest Surg 13(11):1293-1314. Published online Nov 27, 2021. doi: 10.4240/wjgs.v13.i11.1293
Minireviews
Bengi Balci, Alp Yildiz, Sezai Leventoğlu, Bulent Mentes 
World J Gastrointest Surg 13(11):1327-1337. Published online Nov 27, 2021. doi: 10.4240/wjgs.v13.i11.1327
Darren L Scroggie, Vasileios K Mavroeidis 
World J Gastrointest Surg 13(11):1338-1350. Published online Nov 27, 2021. doi: 10.4240/wjgs.v13.i11.1338
Yoshihiko Kawaguchi, Hidenori Akaike, Katsutoshi Shoda, Shinji Furuya, Naohiro Hosomura, Hidetake Amemiya, Hiromichi Kawaida, Hiroshi Kono, Daisuke Ichikawa 
World J Gastrointest Surg 13(11):1351-1360. Published online Nov 27, 2021. doi: 10.4240/wjgs.v13.i11.1351
Case Control Study
Retrospective Study
Yin-Ping Dong, Feng-Lin Cai, Zi-Zhen Wu, Peng-Liang Wang, Yang Yang, Shi-Wei Guo, Zhen-Zhen Zhao, Fu-Cheng Zhao, Han Liang, Jing-Yu Deng 
World J Gastrointest Surg 13(11):1390-1404. Published online Nov 27, 2021. doi: 10.4240/wjgs.v13.i11.1390
Sarang Hong, Ki Byung Song, Dae Wook Hwang, Jae Hoon Lee, Woohyung Lee, Eunsung Jun, Jaewoo Kwon, Yejong Park, Seo Young Park, Naru Kim, Dakyum Shin, Hyeyeon Kim, Minkyu Sung, Yunbeom Ryu, Song Cheol Kim 
World J Gastrointest Surg 13(11):1423-1435. Published online Nov 27, 2021. doi: 10.4240/wjgs.v13.i11.1423
Danial Haris Shaikh, Harish Patel, Rezwan Munshi, Haozhe Sun, Shehriyar Mehershahi, Ahmed Baiomi, Ahmed Alemam, Usman Pirzada, Iqra Nawaz, Kamrun Naher, Siddarth Hanumanthu, Suresh Nayudu 
World J Gastrointest Surg 13(11):1436-1447. Published online Nov 27, 2021. doi: 10.4240/wjgs.v13.i11.1436
Observational Study
Jacopo Desiderio, Andrea Sagnotta, Irene Terrenato, Eleonora Garofoli, Claudia Mosillo, Stefano Trastulli, Federica Arteritano, Federico Tozzi, Vito D'Andrea, Yuman Fong, Yanghee Woo, Sergio Bracarda, Amilcare Parisi 
World J Gastrointest Surg 13(11):1463-1483. Published online Nov 27, 2021. doi: 10.4240/wjgs.v13.i11.1463
Koji Nakada, Masami Ikeda, Masazumi Takahashi, Shinichi Kinami, Masashi Yoshida, Yoshikazu Uenosono, Masanori Terashima, Atsushi Oshio, Yasuhiro Kodera 
World J Gastrointest Surg 13(11):1484-1496. Published online Nov 27, 2021. doi: 10.4240/wjgs.v13.i11.1484
Systematic Reviews
Scientometrics