<http://webisa.webdatacommons.org/165066774>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<bio-medicine.org> .
<http://webisa.webdatacommons.org/prov/472243785>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/165066774> .
<http://webisa.webdatacommons.org/165066774>	<http://www.w3.org/ns/prov#value>	"It is well known that vitamin A is an essential nutrient for normal cellular ..." .
<http://webisa.webdatacommons.org/165066774>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .