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aDepartment of Pediatric Otolaryngology, Dalhousie University, Halifax, Nova Scotia, Canada (Clarke, Rappaport) bMcGill University, Department of Otolaryngology, Montréal, Québec, Canada (Rappaport, Haben) FRCS(C) *Correspondence address: C Michael Haben, MD, 5551 Chemin Queen Mary, Ste #3, Montréal, Québec, H3X 1W1, Canada Received July 25, 2001; Revised October 11, 2001; Accepted October 17, 2001. No competing interests declared.
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Haben et al. (2002) studied this question.
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