Multi-ancestral genome-wide association study of clinically defined nicotine dependence reveals strong genetic correlations with other substance use disorders and health-related traits. - Johnson EC; Lai D; Balbona JV; Miller AP; Hatoum AS; Deak JD; Jennings M; Baranger DAA; Galimberti M; Sanichwankul K; Thorgeirsson T; Colbert SMC; et al. (Psychological medicine, 2025)