Letters Concept of placebo should be discarded BMJ 1995; 311 doi: https://doi.org/10.1136/bmj.311.7020.1640b (Published 16 December 1995) Cite this as: BMJ 1995;311:1640 Article Related content Metrics Responses Peer review Related articles Education And Debate Concept of true and perceived placebo effects Published: 26 August 1995; BMJ 311 doi:10.1136/bmj.311.7004.551