About: http://webisa.webdatacommons.org/120109173

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	their mothers or other close relatives, with direct knowledge of the participants???
http://www.w3.org/ns/prov#wasQuotedFrom	jamanetwork.com