PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Migraine headache has been suspected as both a risk factor and a precipitating event for stroke in premenopausal women, but the degree of association and the interplay between migraine and other factors, such as hypertension and use of oral contraceptives, has been unclear.
http://www.w3.org/ns/prov#wasQuotedFrom
  • aafp.org