Mental disorders are now the leading causes of disability, absence from work and early retirement in Europe, costing more than 520.000 Million € per year (Wittchen et al. 2011). Between 2004 and 2005, an approximate 27% of the adult EU population (18-65 years) has been affected by at least one mental disorder (Wittchen and Jacobi 2005). Despite the already staggering healthcare costs, during these 12 months only one quarter of affected subjects had any consultation with professional health care services, illustrating a substantial unmet clinical need (Wittchen and Jacobi 2005).