PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In licensed clinics donor sperm and eggs are subject to rigorous quality checks, including screening to ensure that the material has not been infected with diseases such as Chlamydia or HIV. Patients using a donor who they have met via a website do not have those same protections as there is no mandatory requirement for websites to vet their donors.
http://www.w3.org/ns/prov#wasQuotedFrom
  • hfea.gov.uk