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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: eng p.Acta Oncol. 1999;38(8):1005-9. doi: 10.1080/028418699432266.Acta Oncol. 1999.PMID: 10665753Clinical Trial.
Ang P, Tan EH, Leong SS, Koh L, Eng P, Agasthian T, Cheah FK.Ang P, et al. Among authors: eng p.Chest. 2001 Jul;120(1):50-4. doi: 10.1378/chest.120.1.50.Chest. 2001.PMID: 11451815
Koh MS, Tan BH, Kurup A, Hsu AA, Eng P.Koh MS, et al. Among authors: eng p.Ann Acad Med Singap. 2005 Jun;34(5):394-6.Ann Acad Med Singap. 2005.PMID: 16021232Free article.