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Lu Y, Zhang P, Liu J, Li J, Deng S.Lu Y, et al. Among authors: liu j.PLoS One. 2013;8(2):e56221. doi: 10.1371/journal.pone.0056221. Epub 2013 Feb 15.PLoS One. 2013.PMID: 23457530Free PMC article.
Lu Y, Wu Y, Liu J, Li J, Zhang P.Lu Y, et al. Among authors: liu j.J Med Internet Res. 2017 Apr 7;19(4):e109. doi: 10.2196/jmir.7087.J Med Internet Res. 2017.PMID: 28389418Free PMC article.
Liu J, Jiang X, Chen Q, Song M, Li J.Liu J, et al.Iran J Public Health. 2018 Jun;47(6):861-867.Iran J Public Health. 2018.PMID: 30087872Free PMC article.
Li J, Liu M, Li X, Liu X, Liu J.Li J, et al. Among authors: liu j, liu x, liu m.J Med Internet Res. 2018 Aug 16;20(8):e254. doi: 10.2196/jmir.8868.J Med Internet Res. 2018.PMID: 30115610Free PMC article.Review.
Liu J, Kong J, Zhang X.Liu J, et al.Int J Environ Res Public Health. 2020 Feb 26;17(5):1508. doi: 10.3390/ijerph17051508.Int J Environ Res Public Health. 2020.PMID: 32111045Free PMC article.
Lu Y, Pan T, Liu J, Wu J.Lu Y, et al. Among authors: liu j.Front Public Health. 2021 Jan 25;8:581088. doi: 10.3389/fpubh.2020.581088. eCollection 2020.Front Public Health. 2021.PMID: 33569367Free PMC article.
Liu J, Gao L.Liu J, et al.Int J Environ Res Public Health. 2021 Aug 14;18(16):8603. doi: 10.3390/ijerph18168603.Int J Environ Res Public Health. 2021.PMID: 34444351Free PMC article.
Liu J, Wang J.Liu J, et al.Int J Environ Res Public Health. 2021 Sep 7;18(18):9427. doi: 10.3390/ijerph18189427.Int J Environ Res Public Health. 2021.PMID: 34574361Free PMC article.