About: http://webisa.webdatacommons.org/447141971

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	However, researchers continue to examine vitamin C alone and in combination with other vitamins and substances, such as Echinacea, for its efficacy in preventing and treating diseases and conditions, including cancer.
http://www.w3.org/ns/prov#wasQuotedFrom	sciencedaily.com