- Dr E J D Prinsen, Zwolse Poort, Institute for Mental Health West-Overijssel, Knapenveldsweg 1/P.O. Box 110, 8102 RR/8000 AC Raalte, The Netherlands;
- Received August 20, 2007
- Revised February 25, 2008
- Accepted April 28, 2008
- First published December 22, 2008.
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