MDMA-assisted therapy for posttraumatic stress disorder: A pooled analysis of ethnoracial differences in efficacy and safety from two Phase 2 open-label lead-in trials and a Phase 3 randomized, blinded placebo-controlled trial. - Ching TH; Williams MT; Wang JB; Jerome L; Yazar-Klosinski B; Emerson A; Doblin R (Journal of psychopharmacology (Oxford, England), 2022)