About: http://webisa.webdatacommons.org/453636745

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Tracheostomy tubes are available in several sizes and materials including semi-flexible plastic, rigid plastic or metal.
http://www.w3.org/ns/prov#wasQuotedFrom	clevelandclinic.org