<http://webisa.webdatacommons.org/83305280>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<ama-assn.org> .
<http://webisa.webdatacommons.org/prov/131153511>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/83305280> .
<http://webisa.webdatacommons.org/83305280>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/83305280>	<http://www.w3.org/ns/prov#value>	"Human papillomavirus is a necessary cause of invasive cervical cancer worldwide." .