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Open-Access Journal
Review
Si-Yu Wang, Qin-Chao Hu, Tong Wu, Juan Xia, Xiao-An Tao, Bin Cheng 
World J Stem Cells 14(2):146-162. Published online Feb 26, 2022. doi: 10.4252/wjsc.v14.i2.146
Basic Study
Cheng-Yu Mao, Tian-Tian Zhang, Dong-Jiu Li, En Zhou, Yu-Qi Fan, Qing He, Chang-Qian Wang, Jun-Feng Zhang 
World J Stem Cells 14(2):183-199. Published online Feb 26, 2022. doi: 10.4252/wjsc.v14.i2.183
Systematic Reviews
Sophie Vanderstichele, Jan Jeroen Vranckx 
World J Stem Cells 14(2):200-213. Published online Feb 26, 2022. doi: 10.4252/wjsc.v14.i2.200
Letter to the Editor
Hao-Cheng Qin, Zhi-Wen Luo, Yu-Lian Zhu 
World J Stem Cells 14(2):214-218. Published online Feb 26, 2022. doi: 10.4252/wjsc.v14.i2.214
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