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Chan M, Lo CK, Cheng LS, Cheung TC, Wong YC.Chan M, et al. Among authors: cheung tc.Food Addit Contam Part A Chem Anal Control Expo Risk Assess. 2009 Nov;26(11):1450-8. doi: 10.1080/02652030903173627.Food Addit Contam Part A Chem Anal Control Expo Risk Assess. 2009.PMID: 19724953
Ng FH, Chau TN, Cheung TC, Kng C, Wong SY, Ng WF, Lee KC, Chan E, Lai ST, Yuen WC, Chang CM.Ng FH, et al. Among authors: cheung tc.Dig Dis Sci. 1999 May;44(5):945-52. doi: 10.1023/a:1026604529393.Dig Dis Sci. 1999.PMID: 10235602