About: http://webisa.webdatacommons.org/158261626

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	In recent years, much research has been done in developing systems using polymeric compositions with a programed release of active agents, especially drugs, over periods of times.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk