About: http://webisa.webdatacommons.org/25156737

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	I would add: specifically OBSERVATIONAL studies (whether the sample is a large population as used in epidemiological studies, or a smaller group).
http://www.w3.org/ns/prov#wasQuotedFrom	fool.com