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Tan EH, Chua ET, Wee J, Tan T, Fong KW, Ang PT, Lee KS, Lee KM, Khoo-Tan HS, Leong SS, Ong YK, Foo KF, Sethi VK, Chua EJ.Tan EH, et al. Among authors: leong ss.Int J Radiat Oncol Biol Phys. 1999 Oct 1;45(3):597-601. doi: 10.1016/s0360-3016(99)00210-2.Int J Radiat Oncol Biol Phys. 1999.PMID: 10524411
Soo KC, Tan EH, Wee J, Lim D, Tai BC, Khoo ML, Goh C, Leong SS, Tan T, Fong KW, Lu P, See A, Machin D.Soo KC, et al. Among authors: leong ss.Br J Cancer. 2005 Aug 8;93(3):279-86. doi: 10.1038/sj.bjc.6602696.Br J Cancer. 2005.PMID: 16012523Free PMC article.Clinical Trial.
Tan EH, Wee J, Ang PT, Fong KW, Leong SS, Khoo KS, Tan T, Lee KS, Eng P, Hsu A, Tan YK, Chua EJ, Ong YY.Tan EH, et al. Among authors: leong ss.Acta Oncol. 1999;38(8):1005-9. doi: 10.1080/028418699432266.Acta Oncol. 1999.PMID: 10665753Clinical Trial.