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Yeo KK, Ding ZP, Chua YL, Lim ST, Sin KY, Tan JW, Chiam PT, Hwang NC, Koh TH.Yeo KK, et al. Among authors: koh th.Singapore Med J. 2013 Jan;54(1):e9-e12.Singapore Med J. 2013.PMID: 23338929Free article.
Chan CN, Tan AT, Koh TH, Chee TS, Ding ZP.Chan CN, et al. Among authors: koh th.Singapore Med J. 1993 Apr;34(2):115-7.Singapore Med J. 1993.PMID: 8266147
Lau KW, Ding ZP, Lee CY, Koh TH, Gao W, Johan A.Lau KW, et al. Among authors: koh th.Singapore Med J. 1996 Feb;37(1):34-8.Singapore Med J. 1996.PMID: 8783910Clinical Trial.
Lau KW, Ding ZP, Gao W, Koh TH, Johan A.Lau KW, et al. Among authors: koh th.Eur Heart J. 1996 Sep;17(9):1367-72. doi: 10.1093/oxfordjournals.eurheartj.a015071.Eur Heart J. 1996.PMID: 8880022
Lee CY, Lau KW, Ding ZP, Tan A, Chan C, Koh TH, Quek S, Chee TS, Ng A, Johan A.Lee CY, et al. Among authors: koh th.Singapore Med J. 1995 Oct;36(5):474-8.Singapore Med J. 1995.PMID: 8882527
Gao W, Lau KW, Ding ZP, Koh TH, Ardian JS, Goh PP, Quek S, Ng A, Johan A.Gao W, et al. Among authors: koh th.Singapore Med J. 1996 Aug;37(4):357-61.Singapore Med J. 1996.PMID: 8993131
Tang HC, Wong A, Wong P, Chua TS, Koh TH, Lim ST.Tang HC, et al. Among authors: koh th.Singapore Med J. 2007 Dec;48(12):1122-4.Singapore Med J. 2007.PMID: 18043840Free article.