About: http://webisa.webdatacommons.org/230952370

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	Because of migration and other factors, 75% of the cohort is lost, as the ones who moved out are not followed.[5][23]
http://www.w3.org/ns/prov#wasQuotedFrom	wikipedia.org