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Wang de Y, Gordon BR, Chan YH, Yeoh KH.Wang de Y, et al. Among authors: chan yh.Otolaryngol Head Neck Surg. 2007 Nov;137(5):803-809. doi: 10.1016/j.otohns.2007.06.714.Otolaryngol Head Neck Surg. 2007.PMID: 17967650
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