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Song D, Yu DSF, Sun Q, He G.Song D, et al. Among authors: yu dsf.Int J Environ Res Public Health. 2020 Jul 6;17(13):4862. doi: 10.3390/ijerph17134862.Int J Environ Res Public Health. 2020.PMID: 32640633Free PMC article.
Song D, Yu DSF, Li PWC, Sun Q.Song D, et al. Among authors: yu dsf.Int J Environ Res Public Health. 2019 Sep 17;16(18):3449. doi: 10.3390/ijerph16183449.Int J Environ Res Public Health. 2019.PMID: 31533269Free PMC article.
Song D, Yu DSF, Li PWC, He G, Shen C, Chen G, Sun Q.Song D, et al. Among authors: yu dsf.Int J Older People Nurs. 2020 Mar;15(1):e12279. doi: 10.1111/opn.12279. Epub 2019 Nov 19.Int J Older People Nurs. 2020.PMID: 31746113