About: http://webisa.webdatacommons.org/212759467

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	Prior to the 1960s, the diet, including water, was the only significant source of fluoride.
http://www.w3.org/ns/prov#wasQuotedFrom	nap.edu