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Sayin I, Kaya KH, Ekizoğlu O, Erdim I, Kayhan FT.Sayin I, et al. Among authors: erdim i.Eur Arch Otorhinolaryngol. 2013 Nov;270(11):2857-63. doi: 10.1007/s00405-012-2331-x. Epub 2013 Jan 5.Eur Arch Otorhinolaryngol. 2013.PMID: 23292038Clinical Trial.