- Correspondence to: Dr Tilo Kircher Department of Psychiatry and Psychotherapy, RWTH Aachen, Pauwelsstr 30, D-52074 Aachen, Germany;
- Received 18 August 2006
- Accepted 15 January 2007
- Revised 9 November 2006
- Published in print 1 August 2007.
- Published online 16 July 2007.
- Published first 7 February 2007.
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