About: http://webisa.webdatacommons.org/20760442

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	Nature and magnitude of exposure occurring in the past, especially during the 1960s and 1970s, are unknown.
http://www.w3.org/ns/prov#wasQuotedFrom	cdc.gov