About: http://webisa.webdatacommons.org/200375561

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	The purpose is to study the extent to which stress and other factors, including money and amount of work effort, affect opioid choice.
http://www.w3.org/ns/prov#wasQuotedFrom	clinicaltrials.gov