EXHIBIT 6-66 - DRC.2000.0004.0893 - P. Tyrer et al,'Risperidone, haloperidol, and placebo in the treatment of aggressive challenging behaviour in patients with intellectual disability: a randomised controlled trial', Lancet 371 You are here Home Publications EXHIBIT 6-66 - DRC.2000.0004.0893 - P. Tyrer et al,'Risperidone, haloperidol, and placebo in the treatment of aggressive challenging behaviour in patients with intellectual disability: a randomised controlled trial', Lancet 371 Exhibit Publication date 25 September 2020 Download DRC.2000.0004.0893.pdf