Dan J. Stein

January 1, 2026

Placebo and nocebo effects of pharmacotherapy for obsessive–compulsive related disorders: a systematic review and meta-analysis

Abstract Objective: This systematic review and meta-analysis aimed to quantify the magnitude of placebo and nocebo effects in pharmacological trials…

May 12, 2021

Patient outcomes and experience of a task-shared screening and brief intervention service for problem substance use in South African emergency centres: a mixed methods study

Abstract Background: Screening, brief intervention and referral to treatment (SBIRT) programmes have resulted in generally positive outcomes in healthcare settings,…