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Clifford RE, Coleman JK, Balough BJ, Liu J, Kopke RD, Jackson RL.Clifford RE, et al. Among authors: coleman jk.Otolaryngol Head Neck Surg. 2011 Dec;145(6):999-1006. doi: 10.1177/0194599811414496. Epub 2011 Jul 12.Otolaryngol Head Neck Surg. 2011.PMID: 21750343