About: http://webisa.webdatacommons.org/378207174

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	Any condition that would interfere with the ERG recording (such as media opacities including lens or corneal opacity)
http://www.w3.org/ns/prov#wasQuotedFrom	clinicaltrials.gov