About: http://webisa.webdatacommons.org/262846502

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	They may be discovered incidentally, or may cause symptoms such as seizures or headaches depending on their size and location.
http://www.w3.org/ns/prov#wasQuotedFrom	medhelp.org