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Freeman, Daniel, Felicity Waite, Richard Emsley, David Kingdon, Linda Davies, Ray Fitzpatrick, e Graham Dunn. "The Efficacy of a New Translational Treatment for Persecutory Delusions: Study Protocol for a Randomised Controlled Trial (The Feeling Safe Study)." Trials 2016.

Freeman, Daniel, et al. "The Efficacy of a New Translational Treatment for Persecutory Delusions: Study Protocol for a Randomised Controlled Trial (The Feeling Safe Study)." Trials 2016.