About: http://webisa.webdatacommons.org/418119524

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 used herein, the term ???sampling??? mechanism refers to extraction of a substance from the biological system, generally across a membrane such as skin or mucosa.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk