Can metacognitive interventions improve insight in schizophrenia spectrum disorders? A systematic review and meta-analysis - Lopez-Morinigo JD; Ajnakina O; Martínez ASE; Escobedo-Aedo PJ; Ruiz-Ruano VG; Sánchez-Alonso S; Mata-Iturralde L; Muñoz-Lorenzo L; Ochoa S; Baca-Garciá E; David AS (Psychological Medicine, 2020)