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Song S, Li C, Chu HO, Gibson D.Song S, et al. Among authors: chu ho.Appl Opt. 2017 Feb 1;56(4):C206-C210. doi: 10.1364/AO.56.00C206.Appl Opt. 2017.PMID: 28158147
Wong CKH, Man KKC, Shi M, Chan EW, Ho CW, Tse ETY, Wong ICK, Lam CLK.Wong CKH, et al. Among authors: ho cw.PLoS Med. 2019 Dec 26;16(12):e1002999. doi: 10.1371/journal.pmed.1002999. eCollection 2019 Dec.PLoS Med. 2019.PMID: 31877127Free PMC article.