About: http://webisa.webdatacommons.org/338220502

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 data are likely to contain, therefore, unknown and uncontrolled biases, including selection bias and other problems inherent in nonrandomized retrospective designs.
http://www.w3.org/ns/prov#wasQuotedFrom	auanet.org