About: http://webisa.webdatacommons.org/92694915

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	Studies with both designs had problems such as differences in follow-up time and multiple studies conducted by the same investigators.
http://www.w3.org/ns/prov#wasQuotedFrom	thecommunityguide.org