A: Pressure ulcer on the left cheek of a patient after 1 week of prone positioning using a commercially available endotracheal tube (ETT) holder. A: Pressure ulcer on the left cheek of a patient after 1 week of prone positioning using a commercially available endotracheal tube (ETT) holder. B: Pressure ulcer on the right cheek of a patient after 1 week of prone positioning using a commercially available ETT holder. C: Pressure ulcer on the right cheek of a patient after 1 week of prone positioning using a commercially available ETT holder. Richard D Branson et al. Respir Care 2014;59:974-990 (c) 2012 by Daedalus Enterprises, Inc.