About: http://webisa.webdatacommons.org/372797539

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	However, some chemicals and other ingredients used by pharmaceutical firms have very high quality assurance standards to protect against contaminants.
http://www.w3.org/ns/prov#wasQuotedFrom	illinois.edu