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Zhai W, Zhang X, Hou H, Meng Q.Zhai W, et al.Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. 2020 Jun 25;37(3):399-404. doi: 10.7507/1001-5515.201910036.Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. 2020.PMID: 32597080Free PMC article.Chinese.
Hou HR, Kang Y.Hou HR, et al.Zhongguo Shi Yan Xue Ye Xue Za Zhi. 2023 Auguest;31(4):1217-1223. doi: 10.19746/j.cnki.issn.1009-2137.2023.04.044.Zhongguo Shi Yan Xue Ye Xue Za Zhi. 2023.PMID: 37551501Chinese.