About: http://webisa.webdatacommons.org/156520119

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	We also employed indexing terms when possible to exclude undesired publication types (e.g., reviews, case reports, letters, etc.) and articles published in languages other than English.
http://www.w3.org/ns/prov#wasQuotedFrom	ahrq.gov