The Child and Adolescent Mental Health Atlas project, like the other ATLAS projects, is a systematic attempt to collect information from countries on existing services and resources. This project is led by the World Health Organization, Geneva, in collaboration with the WHO Regional Offi ces and partner organizat- ions. In the case of the child and adolescent mental health ATLAS the project was assisted through collaboration with the International Association for Child and Adolescent Psychiatry and Allied Professions and the World Psychiatric Association Global Presidential Programme on Child Mental Health. Diffi culty in obtaining data related to child and adolescent mental.