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The Laryngoscope > 129 > 11 > E383 - E388
International Journal of Pediatric Otorhinolaryngology > 2006 > 70 > 7 > 1275-1281
International Journal of Pediatric Otorhinolaryngology > 2005 > 69 > 11 > 1547-1550
International Journal of Pediatric Otorhinolaryngology > 2002 > 66 > 2 > 149 - 153