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Tudi M, Daniel Ruan H, Wang L, Lyu J, Sadler R, Connell D, Chu C, Phung DT.Tudi M, et al. Among authors: chu c.Int J Environ Res Public Health. 2021 Jan 27;18(3):1112. doi: 10.3390/ijerph18031112.Int J Environ Res Public Health. 2021.PMID: 33513796Free PMC article.Review.
Phung DT, Connell D, Miller G, Rutherford S, Chu C.Phung DT, et al. Among authors: chu c.Bull World Health Organ. 2012 Jun 1;90(6):468-73. doi: 10.2471/BLT.11.096578. Epub 2012 Apr 11.Bull World Health Organ. 2012.PMID: 22690037Free PMC article.