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Luo Y, Pan X, Zhang Z.Luo Y, et al. Among authors: zhang z.Soc Sci Med. 2019 May;229:96-105. doi: 10.1016/j.socscimed.2018.09.052. Epub 2018 Sep 25.Soc Sci Med. 2019.PMID: 30274688
Xu H, Liu J, Zhang Z, Li L.Xu H, et al. Among authors: zhang z.J Health Soc Behav. 2022 Sep;63(3):410-427. doi: 10.1177/00221465211069895. Epub 2022 Jan 11.J Health Soc Behav. 2022.PMID: 35012397