The peer-led Honest, Open, Proud program to decrease the impact of mental illness stigma among German military personnel: randomized controlled trial. - Rüsch, Nicolas; Helms, Christian; Hörger, Jana; Höhle, Burkhard; Bernert, Hendryk; Muschner, Patric; Rose, Carolyn; Corrigan, Patrick W.; Mulfinger, Nadine; Zimmermann, Peter; Willmund, Gerd-Dieter (Social Psychiatry & Psychiatric Epidemiology, 2026)