About: http://webisa.webdatacommons.org/51252597

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	When there is no ocular pain, most patients only realize that there is something amiss in his or her vision when the disease is already advanced.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com