About: http://webisa.webdatacommons.org/370445904

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	Contrast agents currently available are radiopaque, low molecular weight, water soluble, organic molecules, such as salts of iodine-containing aromatic molecules (e.g., diatrizoate and metrizoate).
http://www.w3.org/ns/prov#wasQuotedFrom	google.com