About: http://webisa.webdatacommons.org/180644810

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 study was a population-based retrospective cohort analysis using external comparisons.
http://www.w3.org/ns/prov#wasQuotedFrom	thedoctorsdoctor.com