About: http://webisa.webdatacommons.org/261540042

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	A control was a person residing in the same community who did not have history of signs and symptoms of measles during the same period.
http://www.w3.org/ns/prov#wasQuotedFrom	worldwidescience.org