About: http://webisa.webdatacommons.org/88889398

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	Although it is recognized that psychological factors, such as expectation or stress, significantly contribute to pain tolerance and treatment efficacy, the physiological mechanisms of these effects are poorly understood.
http://www.w3.org/ns/prov#wasQuotedFrom	nih.gov