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Ashok V, Nishkantha A, Leong KH, Luo HD, El-Oakley RM, Tan CT, Lee CN, Sim EK.Ashok V, et al. Among authors: leong kh.Singapore Med J. 2005 Jan;46(1):15-20.Singapore Med J. 2005.PMID: 15633003Free article.
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