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Mann DV, Lam WW, Magnus Hjelm N, So NM, Yeung DK, Metreweli C, Lau WY.Mann DV, et al. Among authors: yeung dk.Gut. 2002 Jan;50(1):118-22. doi: 10.1136/gut.50.1.118.Gut. 2002.PMID: 11772978Free PMC article.
Tse GM, Cheung HS, Pang LM, Chu WC, Law BK, Kung FY, Yeung DK.Tse GM, et al. Among authors: yeung dk.AJR Am J Roentgenol. 2003 Nov;181(5):1267-72. doi: 10.2214/ajr.181.5.1811267.AJR Am J Roentgenol. 2003.PMID: 14573418