Transdiagnostic and Disorder-Level Genome-Wide Association Studies Enhance Precision of Substance Use and Psychiatric Genetic Risk Profiles in African and European Ancestries. - Khan Y; Davis CN; Jinwala Z; Feuer KL; Toikumo S; Hartwell EE; Sanchez-Roige S; Peterson RE; Hatoum AS; Kranzler HR; Kember RL (Biological psychiatry, 2026)