About: http://webisa.webdatacommons.org/229935812

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 resulting gas-filled vesicle contrast agent produced post-shaking may then be more stable than the air, nitrogen, oxygen, carbon dioxide or other more soluble gases alone.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com