Figure 1 - Laryngeal clefts classification.
From the following article
Head and neck disorders affecting swallowing
Timothy M. McCulloch and Debra Jaffe
GI Motility online (2006)
doi:10.1038/gimo36
Type 1: supraglottic interarytenoid cleft. Type 2: partial cricoid cleft. Type 3: total cricoid cleft. Type 4: laryngoesophageal cleft. (Source: Benjamin and Inglis,3 with permission from Annals Publishing Co.)
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