About: http://webisa.webdatacommons.org/217713481

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	Other sources of information were examined including the bibliographies of systematic and narrative reviews and reference lists of key articles identified through the search strategy.
http://www.w3.org/ns/prov#wasQuotedFrom	biomedsearch.com