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Li W, Sun N, Kondracki AJ, Kiplagat S, Osibogun O, Kalan ME, Jebai R, Sun W, Wei Z.Li W, et al. Among authors: kondracki aj.BMJ Open. 2021 Oct 12;11(10):e048214. doi: 10.1136/bmjopen-2020-048214.BMJ Open. 2021.PMID: 34642191Free PMC article.
Li W, Kondracki A, Gautam P, Rahman A, Kiplagat S, Liu H, Sun W.Li W, et al.Sleep Breath. 2021 Sep;25(3):1239-1246. doi: 10.1007/s11325-020-02214-x. Epub 2020 Oct 16.Sleep Breath. 2021.PMID: 33067754
Li W, Sun N, Kondracki A, Sun W.Li W, et al.Int J Environ Res Public Health. 2021 Sep 27;18(19):10140. doi: 10.3390/ijerph181910140.Int J Environ Res Public Health. 2021.PMID: 34639442Free PMC article.
Li W, Kondracki AJ, Sun N, Gautam P, Kalan ME, Jebai R, Gbadamosi SO, Sun W.Li W, et al. Among authors: kondracki aj.Sleep Breath. 2022 Sep;26(3):1427-1435. doi: 10.1007/s11325-021-02487-w. Epub 2021 Nov 3.Sleep Breath. 2022.PMID: 34729674
Kondracki AJ, Li W, Kalan ME, Ben Taleb Z, Ibrahimou B, Bursac Z.Kondracki AJ, et al.Subst Use Misuse. 2022;57(6):833-840. doi: 10.1080/10826084.2022.2046092. Epub 2022 Mar 8.Subst Use Misuse. 2022.PMID: 35258396