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Casani A, Nuti D, Franceschini SS, Gaudini E, Dallan I.Casani A, et al.Otolaryngol Head Neck Surg. 2005 Dec;133(6):929-35. doi: 10.1016/j.otohns.2005.07.033.Otolaryngol Head Neck Surg. 2005.PMID: 16360516Clinical Trial.
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