Characteristics and definitions of ultra-treatment-resistant schizophrenia - A systematic review and meta-analysis.

Campana M, Falkai P, Siskind D, Hasan A, Wagner E. Characteristics and definitions of ultra-treatment-resistant schizophrenia - A systematic review and meta-analysis. Schizophr Res. 2021 Jan 14;228:218-226. doi: 10.1016/j.schres.2020.12.002. Epub ahead of print. PMID: 33454644