作者单位：Queens Univ, Dept Family Med, Kingston, ON, Canada[1]Queens Univ, Div Otolaryngol Head & Neck Surg, Kingston, ON, Canada[2]Hamilton Hlth Sci, Dept Emergency Med, Hamilton, ON, Canada[3]Hop Hotel Dieu, Dept Audiol & Speech Language Pathol, Kingston, ON, Canada[4]Queens Univ, Dept Otolaryngol, Kingston, ON, Canada[5]
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