About: http://webisa.webdatacommons.org/255159883

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	Such devices, as previously analyzed, have been of questionable accuracy, but in any event, they generally incorporate various types of spirometric instrumentation for analyzing the air respiring from the lungs.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com