Dopamine and serotonin genetic risk scores predicting substance and nicotine use in attention deficit/hyperactivity disorder

Annabeth P. Groenman, Corina U. Greven, Marjolein M. J. van Donkelaar, Arnt Schellekens, Kimm J. E. van Hulzen, Nanda Rommelse, Catharina A. Hartman, Pieter J. Hoekstra, Marjolein Luman, Barbara Franke, Stephen V. Faraone^*, Jaap Oosterlaan, Jan K. Buitelaar