<http://webisa.webdatacommons.org/prov/254180420>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/321063773> .
<http://webisa.webdatacommons.org/321063773>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<cetaoyun.com> .
<http://webisa.webdatacommons.org/321063773>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/321063773>	<http://www.w3.org/ns/prov#value>	"Differences in quality of care, health status, patient preferences and other factors may also play a role." .