<http://webisa.webdatacommons.org/131295115>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/131295115>	<http://www.w3.org/ns/prov#value>	"And like virtually every social marketing mechanism the medical establishment employed at the time, these billboards were a form of one-way communication: doctor speaking to patient." .
<http://webisa.webdatacommons.org/prov/149794539>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/131295115> .
<http://webisa.webdatacommons.org/prov/168417528>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/131295115> .
<http://webisa.webdatacommons.org/131295115>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<nationalpost.com> .