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<http://webisa.webdatacommons.org/prov/290388875>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/223536629> .
<http://webisa.webdatacommons.org/223536629>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<proprofs.com> .
<http://webisa.webdatacommons.org/223536629>	<http://www.w3.org/ns/prov#value>	"Health care is a commodity to be sold at the highest price In the 1800s, what was the popular medical explanation for the cause of sickness?" .