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Open-Access Journal
Review
Minireviews
Case Control Study
Retrospective Cohort Study
Retrospective Study
Clinical Trials Study
Observational Study
Jose María Huguet, Xavier Cortés, Marta Maia Bosca-Watts, Marian Aguas, Nuria Maroto, Lidia Martí, Cirilo Amorós, Jose María Paredes 
World J Clin Cases 9(36):11285-11299. Published online Dec 26, 2021. doi: 10.12998/wjcc.v9.i36.11285
Prospective Study
Case Report
Shalini Upadhyay, Tanisha Bharara, Manisha Khandait, Ankit Chawdhry, Bharat Bhushan Sharma 
World J Clin Cases 9(36):11338-11345. Published online Dec 26, 2021. doi: 10.12998/wjcc.v9.i36.11338
Min-Quan Yao, Bing-Hong Yi, Yong Yang, Xiao-Qi Weng, Jin-Xing Fan, Yu-Peng Jiang 
World J Clin Cases 9(36):11355-11361. Published online Dec 26, 2021. doi: 10.12998/wjcc.v9.i36.11355
Saki Nakashima, Yoshiki Sato, Tsunao Imamura, Daisuke Hattori, Tetsuo Tamura, Rikako Koyama, Junichiro Sato, Yuta Kobayashi, Masaji Hashimoto 
World J Clin Cases 9(36):11382-11391. Published online Dec 26, 2021. doi: 10.12998/wjcc.v9.i36.11382
Yu Zhou, Chao-Zong Liu, Shan-Yong Zhang, Hao-Yu Wang, Swastina Nath Varma, Lan-Qing Cao, Ting-Ting Hou, Xin Li, Bao-Jin Yao 
World J Clin Cases 9(36):11448-11456. Published online Dec 26, 2021. doi: 10.12998/wjcc.v9.i36.11448
Letter to the Editor