Dan J Stein1
, Derek Bolton2
, Damiaan Denys3
, Thomas Huddle4
and Tia Powell5 
1
Dept of Psychiatry, University of Cape Town, Groote Schuur Hospital J-2, Anzio Rd, Observatory 7925, Cape Town, South Africa
2
Dept of Psychology, Institute of Psychiatry, Kings College London, London, UK
3
Dept of Psychiatry, University Medical Center, Utrecht, Netherlands
4
Division of General Internal Medicine, University of Alabama at Birmingham, Birmingham AL USA
5
New York State Task Force on Life and the Law, New York, USA