What is the association between BMI classes and the outcome in incisional hernia repair? - Köckerling F; Zarras K; Schwab R; Niebuhr H; Reinpold W; Riediger H; Mayer F; Stechemesser B; Conze J; Lorenz R; Fortelny R (Hernia : the journal of hernias and abdominal wall surgery, 2025)