About: http://webisa.webdatacommons.org/311599799

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 is possible, though, for the time span to be anywhere from 2 to 20 years, depending on several factors, including the person's overall health, age and severity of symptoms.
http://www.w3.org/ns/prov#wasQuotedFrom	lbda.org