About: http://webisa.webdatacommons.org/202658566

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http://www.w3.org/ns/prov#value	However, it was unclear whether efforts were made to locate unpublished studies or those reported in languages other than English.
http://www.w3.org/ns/prov#wasQuotedFrom	york.ac.uk