PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Clinical trials are expensive and are taking longer to conduct than in the past, thus further compounding the increased costs [2], and this is the case for all types of trial, whether commercial or academic.
http://www.w3.org/ns/prov#wasQuotedFrom
  • plos.org