1. Unit for Social and Community Psychiatry Queen Mary University of London London UK
2. Institute of Biomedical Sciences Abel Salazar University of Porto Porto Portugal
3. Hospital de Magalhaes Lemos Porto Portugal
4. Department of Psychiatry Kowloon Hospital Hong Kong Hong Kong
5. Department of Psychiatry Columbia University Vagelos College of Physicians and Surgeons New York NY USA
6. World Health Organization Geneva Switzerland