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Koh GC, Shek LP, Kee J, Tai BC, Wee A, Ng V, Koh D.Koh GC, et al. Among authors: koh d.Indoor Air. 2009 Dec;19(6):468-73. doi: 10.1111/j.1600-0668.2009.00610.x. Epub 2009 Aug 12.Indoor Air. 2009.PMID: 19682104
Wong TY, Koh GCh, Cheong SK, Lee HY, Fong YT, Sundram M, Koh K, Chia SE, Koh D.Wong TY, et al.Ann Acad Med Singap. 2008 Feb;37(2):96-102.Ann Acad Med Singap. 2008.PMID: 18327343Free article.
Cheong SK, Wong TY, Lee HY, Fong YT, Tan BY, Koh GCh, Chan KM, Chia SE, Koh D.Cheong SK, et al.Ind Health. 2007 Oct;45(5):653-61. doi: 10.2486/indhealth.45.653.Ind Health. 2007.PMID: 18057808Free article.
Chia SE, Koh D, Fones C, Qian F, Ng V, Tan BH, Wong KS, Chew WM, Tang HK, Ng W, Muttakin Z, Emmanuel S, Fong NP, Koh G, Lim MK.Chia SE, et al.Occup Environ Med. 2005 Jul;62(7):473-7. doi: 10.1136/oem.2004.015024.Occup Environ Med. 2005.PMID: 15961624Free PMC article.
Koh GC, Wee LE, Rizvi NA, Chen C, Cheong A, Fong NP, Chan KM, Tan BY, Menon E, Ee CH, Lee KK, Petrella R, Thind A, Koh D, Chia KS.Koh GC, et al. Among authors: koh d.Ann Acad Med Singap. 2012 Nov;41(11):494-510.Ann Acad Med Singap. 2012.PMID: 23235727Free article.