About: http://webisa.webdatacommons.org/438986338

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	Lightheadedness may result from relative hypotension, depending on the heart rate and other factors, such as the state of hydration and particularly the presence of structural heart disease.
http://www.w3.org/ns/prov#wasQuotedFrom	medscape.com