Assertion: endotracheal tube's length | /r/CapableOf | represent the distance
Facets:
value: to the upper incisors
type: LOCATION
value: in children
type: LOCATION
value: from the tube tip
type: LOCATION
Source sentences:
text: An estimate of the proper depth of tube placement can be derived from the following formulas, the lengths representing the distance from the tube tip to the upper incisors in children and from the upper incisors  or the corner of the mouth  in adults: