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Open-Access Journal
Review
Tong-Yi Huang, Xiao-Yan Xie, Jian-Ting Long, Bao-Xian Liu, Hai-Yi Long 
World J Clin Cases 9(21):5754-5768. Published online Jul 26, 2021. doi: 10.12998/wjcc.v9.i21.5754
Minireviews
Chao Liang, Heng-Miao Wu, Wei-Ming Yu, Wei Chen 
World J Clin Cases 9(21):5782-5793. Published online Jul 26, 2021. doi: 10.12998/wjcc.v9.i21.5782
Min Cheol Chang, Du Hwan Kim 
World J Clin Cases 9(21):5804-5811. Published online Jul 26, 2021. doi: 10.12998/wjcc.v9.i21.5804
Case Control Study
Ning Tan, Hao Luo, Qian Kang, Jia-Li Pan, Ran Cheng, Hong-Li Xi, Hong-Yu Chen, Yi-Fan Han, Yu-Ping yang, Xiao-Yuan Xu 
World J Clin Cases 9(21):5812-5821. Published online Jul 26, 2021. doi: 10.12998/wjcc.v9.i21.5812
Retrospective Cohort Study
Andreas Koutsoumpas, Ruwan Perera, Adele Melton, Jonathan Kuker, Tilak Ghosh, Barbara Braden 
World J Clin Cases 9(21):5822-5829. Published online Jul 26, 2021. doi: 10.12998/wjcc.v9.i21.5822
Retrospective Study
Wei Zhang, Xin-Quan Sun, Xiao-Yan Peng 
World J Clin Cases 9(21):5830-5839. Published online Jul 26, 2021. doi: 10.12998/wjcc.v9.i21.5830
Na Na, Su-Ling Guo, Ying-Ying Zhang, Mei Ye, Na Zhang, Gui-Xia Wu, Le-Wei Ma 
World J Clin Cases 9(21):5840-5849. Published online Jul 26, 2021. doi: 10.12998/wjcc.v9.i21.5840
Gbeminiyi Samuel, MaryKate Kratzer, Oghale Asagbra, Josef Kinderwater, Shiva Poola, Jennifer Udom, Karissa Lambert, Muna Mian, Eslam Ali 
World J Clin Cases 9(21):5850-5859. Published online Jul 26, 2021. doi: 10.12998/wjcc.v9.i21.5850
Observational Study
Wen-Juan Tang, Wen-Hui Hu, Ying Huang, Bing-Bing Wu, Xiao-Min Peng, Xiao-Wen Zhai, Xiao-Wen Qian, Zi-Qing Ye, Hai-Jiao Xia, Jie Wu, Jie-Ru Shi 
World J Clin Cases 9(21):5873-5888. Published online Jul 26, 2021. doi: 10.12998/wjcc.v9.i21.5873
Prospective Study
Jian-Ping Wu, Yuan-Zhang Tang, Liang-Liang He, Wen-Xing Zhao, Jian-Xiong An, Jia-Xiang Ni 
World J Clin Cases 9(21):5900-5908. Published online Jul 26, 2021. doi: 10.12998/wjcc.v9.i21.5900
Randomized Controlled Trial
Systematic Reviews
Maria Teresa Garcia-Rodriguez, Sergio Bujan-Bravo, Rocio Seijo-Bestilleiro, Cristina Gonzalez-Martin 
World J Clin Cases 9(21):5921-5931. Published online Jul 26, 2021. doi: 10.12998/wjcc.v9.i21.5921
Meta-Analysis
Yu-Hong Luo, Yan-Wei Yang, Chang-Fu Wu, Chao Wang, Wen-Juan Li, Hong-Chen Zhang 
World J Clin Cases 9(21):5932-5942. Published online Jul 26, 2021. doi: 10.12998/wjcc.v9.i21.5932
Case Report
Qing Li, Hong-Wei Zhang, Long Sui, Ke-Qin Hua 
World J Clin Cases 9(21):5943-5947. Published online Jul 26, 2021. doi: 10.12998/wjcc.v9.i21.5943
Zong-Ding Wang, Salameen Haitham, Jian-Ping Gong, Zi-Li Pen 
World J Clin Cases 9(21):5948-5954. Published online Jul 26, 2021. doi: 10.12998/wjcc.v9.i21.5948
Xue Du, Yang Gao, Kai Kang, Yang Chong, Mei-Ling Zhang, Wei Yang, Chang-Song Wang, Xiang-Lin Meng, Dong-Sheng Fei, Qing-Qing Dai, Ming-Yan Zhao 
World J Clin Cases 9(21):5955-5962. Published online Jul 26, 2021. doi: 10.12998/wjcc.v9.i21.5955
Xin-Xin Wang, Bao-Long Dong, Biao Wu, Shi-Yong Chen, Yu He, Xiao-Jun Yang 
World J Clin Cases 9(21):5980-5987. Published online Jul 26, 2021. doi: 10.12998/wjcc.v9.i21.5980
Liu-Qing Zhou, Ming Li, Yong-Qin Li, Yan-Jun Wang 
World J Clin Cases 9(21):6005-6008. Published online Jul 26, 2021. doi: 10.12998/wjcc.v9.i21.6005
Jun-Feng Yan, Hai-Yong Zhou, Sheng-Fu Luo, Xing Wang, Jian-Di Yu 
World J Clin Cases 9(21):6009-6016. Published online Jul 26, 2021. doi: 10.12998/wjcc.v9.i21.6009
Hwaseong Ryu, Jae-Yeon Hwang, Yong-Woo Kim, Tae-Un Kim, Joo-Yeon Jang, Su-Eun Park, Eu-Jeen Yang, Dong-Hoon Shin 
World J Clin Cases 9(21):6032-6040. Published online Jul 26, 2021. doi: 10.12998/wjcc.v9.i21.6032
Xiao-Sheng Ding, Lan Mi, Yu-Qin Song, Wei-Ping Liu, Hui Yu, Ning-Jing Lin, Jun Zhu 
World J Clin Cases 9(21):6041-6048. Published online Jul 26, 2021. doi: 10.12998/wjcc.v9.i21.6041
Shao-Hua Bi, Liang-Liang Jiang, Li-Ying Dai, Li-Li Wang, Guang-Hui Liu, Ru-Jeng Teng 
World J Clin Cases 9(21):6056-6066. Published online Jul 26, 2021. doi: 10.12998/wjcc.v9.i21.6056
Ying Yang, Ya-Chang Zeng, Pingkan Rumende, Chen-Guang Wang, Yue Chen 
World J Clin Cases 9(21):6091-6101. Published online Jul 26, 2021. doi: 10.12998/wjcc.v9.i21.6091
Masato Kaku, Shinji Matsuda, Takayasu Kubo, Saiji Shimoe, Kazuhiro Tsuga, Hidemi Kurihara, Kotaro Tanimoto 
World J Clin Cases 9(21):6110-6124. Published online Jul 26, 2021. doi: 10.12998/wjcc.v9.i21.6110
Dongwoo Yu, Wonho Lee, Min Cheol Chang 
World J Clin Cases 9(21):6125-6129. Published online Jul 26, 2021. doi: 10.12998/wjcc.v9.i21.6125
Yire Kim, Jihye Kwak, Sehyun Jung, Seunghye Lee, Ha Nee Jang, Hyun Seop Cho, Se-Ho Chang, Hyun-Jung Kim 
World J Clin Cases 9(21):6130-6137. Published online Jul 26, 2021. doi: 10.12998/wjcc.v9.i21.6130
Min-Yue Yin, Li-Juan Qian, Li-Ting Xi, Yi-Xing Yu, Yu-Qi Shi, Lu Liu, Chun-Fang Xu 
World J Clin Cases 9(21):6138-6144. Published online Jul 26, 2021. doi: 10.12998/wjcc.v9.i21.6138
Goda Seskute, Austeja Dapkute, Dominyka Kausaite, Sandra Strainiene, Andrius Talijunas, Irena Butrimiene 
World J Clin Cases 9(21):6145-6154. Published online Jul 26, 2021. doi: 10.12998/wjcc.v9.i21.6145
Sandra Strainiene, Kotryna Sedleckaite, Juozas Jarasunas, Ilona Savlan, Juozas Stanaitis, Ieva Stundiene, Tomas Strainys, Valentina Liakina, Jonas Valantinas 
World J Clin Cases 9(21):6155-6169. Published online Jul 26, 2021. doi: 10.12998/wjcc.v9.i21.6155
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