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Chung JW, Wong BY, Yan VC, Chung LM, So HC, Chan A.Chung JW, et al. Among authors: chung lm.Int J Environ Res Public Health. 2018 Jun 12;15(6):1251. doi: 10.3390/ijerph15061251.Int J Environ Res Public Health. 2018.PMID: 29895813Free PMC article.
Chung L, Wong T, Chung JW.Chung L, et al.J Child Health Care. 2010 Sep;14(3):280-95. doi: 10.1177/1367493510374065. Epub 2010 Jun 11.J Child Health Care. 2010.PMID: 20542927
Chung LMY, Chung JWY, Chan APC.Chung LMY, et al.Int J Environ Res Public Health. 2019 Dec 2;16(23):4852. doi: 10.3390/ijerph16234852.Int J Environ Res Public Health. 2019.PMID: 31810334Free PMC article.