About: http://webisa.webdatacommons.org/171664631

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	The researchers ensured there was a mix of both in the various units involved, to increase the chances the volunteers in each group had similar levels of exposure to influenza.
http://www.w3.org/ns/prov#wasQuotedFrom	winnipegfreepress.com