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. 2016 Nov 7;17:35. doi: 10.1186/s40510-016-0148-7

Fig. 4.

Fig. 4

Airway Measurements. a. Nasopharynx airway at A point level (participants with Down syndrome*). b. Oral pharyngeal airway space at level of maxillary central incisor (participants with Down syndrome*). c. Hypopharynx airway space at B point level (participants with Down syndrome*). d. Deep pharynx airway at level of pogonion (participants with Down syndrome*)