<http://webisa.webdatacommons.org/228394091>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<ourmedical.net> .
<http://webisa.webdatacommons.org/prov/507841291>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/228394091> .
<http://webisa.webdatacommons.org/228394091>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/228394091>	<http://www.w3.org/ns/prov#value>	"Antioxidants such as vitamin E act to protect cells against the effects of free radicals, potentially damaging by-products of energy metabolism." .