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Hon KL, Li AM, Cheng FW, Leung TF, Ng PC.Hon KL, et al. Among authors: leung tf.Lancet. 2003 Jun 7;361(9373):1984-5. doi: 10.1016/s0140-6736(03)13556-8.Lancet. 2003.PMID: 12801758Free PMC article.No abstract available.