[1] NIAAA, NIH, Neurogenet Lab, Rockville, MD 20852 USA
[2] INSERM, Inst Fer Mulin, UMR S 839, Paris, France
[3] Univ Paris 06, Paris, France
[4] Univ Helsinki, Dept Publ Hlth, Helsinki, Finland
[5] Univ Chicago, Dept Psychiat, Chicago, IL 60637 USA
[6] Indiana Univ, Dept Psychol & Brain Sci, Bloomington, IN 47405 USA
[7] Inst Clin Med, Dept Psychiat, Helsinki, Finland