Heinz Andreas, Friedel Eva, Müller Daniel J, Puls Imke, Wrase Jana
Department of Psychiatry and Psychotherapy, Charité-University Medical Center Berlin, Charité Campus Mitte, Berlin, Germany.
Addiction. 2007 Nov;102(11):1696-7. doi: 10.1111/j.1360-0443.2007.01994.x.