About: http://webisa.webdatacommons.org/307107426

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	The committee has found, however, that the definition and quantification of exposure are the weakest methodologic aspects of the epidemiologic studies.
http://www.w3.org/ns/prov#wasQuotedFrom	nap.edu