Education And Debate When placebo controlled trials are essential and equivalence trials are inadequate BMJ 1998; 317 doi: https://doi.org/10.1136/bmj.317.7162.875 (Published 26 September 1998) Cite this as: BMJ 1998;317:875 Article Related content Metrics Responses Peer review Related articles Letter Trials of postoperative antiemetics need three arms Published: 03 April 1999; BMJ 318 doi:10.1136/bmj.318.7188.942 See more What it feels like to be an interesting teaching opportunity BMJ December 07, 2016, 355 i6190; DOI: https://doi.org/10.1136/bmj.i6190 Chemoprevention of colorectal cancer in individuals with previous colorectal neoplasia: systematic review and network meta-analysis BMJ December 05, 2016, 355 i6188; DOI: https://doi.org/10.1136/bmj.i6188 Doctors face manslaughter charge for failing to raise alarm over killer nurse BMJ December 01, 2016, 355 i6507; DOI: https://doi.org/10.1136/bmj.i6507 Trial of novel leukaemia drug is stopped for second time after two more deaths BMJ November 25, 2016, 355 i6376; DOI: https://doi.org/10.1136/bmj.i6376 Thiazide diuretics seem to protect against fracture BMJ November 22, 2016, 355 i6263; DOI: https://doi.org/10.1136/bmj.i6263 Cited by... Attitudes of patients and surgeons towards sham surgery trials: a protocol for a scoping review of attributes to inform a discrete choice experimentAbstract Fulltext PDF Ethical aspects of placebo groups in pain trials: Lessons from psychiatryAbstract Fulltext PDF Prophylactic respiratory physiotherapy after cardiac surgery: systematic reviewAbstract Fulltext PDF Randomised crossover trial of transdermal fentanyl and sustained release oral morphine for treating chronic non-cancer painAbstract Fulltext PDF Placebo-Controlled Trials of New Drugs: Ethical ConsiderationsAbstract Fulltext PDF For and against: Declaration of Helsinki should be strengthened FOR AGAINST Rothman and Michels' riposteAbstract Fulltext PDF Trials of postoperative antiemetics need three armsAbstract Fulltext PDF