Chapters:
4. Adult mental disorders (Lead author: Steven Hyman)
5. Neurological disorders (Lead author: Kiran Thakur)
6. Illicit drug dependence (Lead author: Louisa Degenhardt)
7. Alcohol use and alcohol use disorders (Lead author: Maria Elena Medina Mora)
8. Childhood mental and developmental disorders (Lead author: James Scott)
9. Suicide and self-harm behaviors (Lead author: Michael Phillips)