PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Although these studies suggest that outer membrane particles may form the basis of vaccines [15], [17], [18], there remain several problems: their reactogenicity and the difficulty of purifying them in the quantity and at costs that would make them attractive as vaccines for the public sector most impacted by diseases such as shigellosis.
http://www.w3.org/ns/prov#wasQuotedFrom
  • plos.org