About: http://webisa.webdatacommons.org/391636715

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	Nutritional deficienciesSeveral studies have indicated that canker sores are more common in individuals who are deficient in iron, folic acid, and other B vitamins.
http://www.w3.org/ns/prov#wasQuotedFrom	massdental.org