Assertion: endotracheal tube | /r/MadeOf | polyvinylchloride
Facets:
value: usually
type: TEMPORAL
value: mostly
type: DEGREE
Source sentences:
text: Endotracheal tubes are mostly made of polyvinylchloride (PVC) and are single-use.
text: Endotracheal tube (ETT) is a flexible plastic tube, usually made of polyvinyl chloride (PVC), that is passed into trachea through the mouth (oral) or nose (nasal) to establish a patent airway and ensure adequate gaseous exchange or ventilation.