About: http://webisa.webdatacommons.org/389429014

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	Several relevant sources were searched and attempts were made to minimise publication bias by including studies reported only as abstracts.
http://www.w3.org/ns/prov#wasQuotedFrom	york.ac.uk