About: http://webisa.webdatacommons.org/109229062

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	Online usage is dependent on a number of factors, including the age of the article, type and subject area it is in.
http://www.w3.org/ns/prov#wasQuotedFrom	bmj.com