<http://webisa.webdatacommons.org/182053155> <http://www.w3.org/ns/prov#value> "None of the 3 patients who knew that one of the treatments was a placebo correctly identified which it was." . <http://webisa.webdatacommons.org/prov/25431992> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/182053155> . <http://webisa.webdatacommons.org/182053155> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/182053155> <http://www.w3.org/ns/prov#wasQuotedFrom> <chiro.org> .