About: http://webisa.webdatacommons.org/397037141

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	The covering may be made of any biocompatible plastic, thermoplastic, fluoropolymer, Teflon???, urethane, metal mesh, coating, silicone or other resilient material that will reduce the bearing pressure on the lung tissue.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca