About: http://webisa.webdatacommons.org/130633485

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	First, it identifies the variables common to both types of study and those particular to ecological studies.
http://www.w3.org/ns/prov#wasQuotedFrom	nih.gov