The authors thank the following funding sources: NIDA and NIAAA Intramural Research Programs (L.L. and M.F.); NIAAA grant R21AA026931 and NIDA grant R21DA047663 (C.H.); the Research Fund of the Mental Health Services – Capital Region of Denmark (M.K.K.), the Novo Nordisk Foundation (M.K.K. and A.F.J.), NIAAA grants R01AA027765, R01AA026859, and R21 AA031146 (J.P.S.); the Hardesty Family Foundation (W.K.S.).