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Ma BB, Poon TC, To KF, Zee B, Mo FK, Chan CM, Ho S, Teo PM, Johnson PJ, Chan AT.Ma BB, et al. Among authors: poon tc.Head Neck. 2003 Oct;25(10):864-72. doi: 10.1002/hed.10307.Head Neck. 2003.PMID: 12966511