Incidence and characteristics of bipolar disorder in middle-aged adults: a prospective population-based study. - Lavigne, Benjamin; Strippoli, Marie-Pierre F.; Ranjbar, Setareh; Elowe, Julien; Fassassi, Sylfa; Berney, Alexandre; von Gunten, Armin; Vandel, Pierre; Vandeleur, Caroline L.; Preisig, Martin (International Journal of Bipolar Disorders, 2026)