Dual-mechanism preventive therapy in chronic migraine: an exploratory meta-analysis of onabotulinumtoxinA and anti-CGRP monoclonal antibody combination. - Sarvari Soltani A; Masoumi S; Soroush P; Noroozi M; Nozad Varjovi M; Najafi F; Karami S; Mirmazloumi M; Rigi A; Zamani N; Javadzadeh A; Fatahi R; et al. (European journal of medical research, 2026)