About: http://webisa.webdatacommons.org/445315726

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	As more became interested more centers were founded and their number increased over time, particularly in Germany and Poland.
http://www.w3.org/ns/prov#wasQuotedFrom	wikipedia.org