About: http://webisa.webdatacommons.org/427522110

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	It has been proposed that in some cases it represents a form of allergic reaction to the metals contained in dental amalgam, particularly mercury.
http://www.w3.org/ns/prov#wasQuotedFrom	mit.edu