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Walk the Even Hospital Database by book and chapter — the raw source passages that ground Ask, DDx, and the rest.

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contentuptodate· Content· item f21_50_22304

©2013 UpToDate ® Print Email Sagittal section of the upper airway, showing collapsing and dilating forces exerted on the pharynx during normal breathing Adapted from Martin, RJ, Miller, MJ, Carlo, WA, J Pediatr 1986; 109:733.