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Open-Access Journal
Editorial
Minireviews
Yang-Yang Meng, Qiao-Dong Li, Ya Feng, Jie Liu, En-Kang Wang, Linda Zhong, Qiao-Li Sun, Jian-Ye Yuan 
World J Clin Cases 9(6):1251-1258. Published online Feb 26, 2021. doi: 10.12998/wjcc.v9.i6.1251
Case Control Study
Retrospective Study
Clinical Trials Study
Observational Study
Case Report
Djandan Tadum Arthur Vithran, Jian-Zhou Wang, Feng Xiang, Jie Wen, Sheng Xiao, Wen-Zhong Tang, Qian Chen 
World J Clin Cases 9(6):1416-1423. Published online Feb 26, 2021. doi: 10.12998/wjcc.v9.i6.1416
Jian-Ting Zeng, Jie-Feng Zhang, Yu Wang, Zhou Qing, Zhen-Hua Luo, Yan-Lin Zhang, Yi Zhang, Xian-Zhang Luo 
World J Clin Cases 9(6):1469-1474. Published online Feb 26, 2021. doi: 10.12998/wjcc.v9.i6.1469