“…No, outcomes of meta-analyses and RCTs are often not known and not used in daily practice. As a consequence, policy measures and interventions are often not supported by evidence (Ferguson, 2003;Garretsen, Bongers, & Rodenburg, 2005;Garretsen, Bongers, de Roo, & van de Goor, 2007;Swinkels, Albarran, Means, Mitchell, & Stewart, 2002;Thyer, 2001). The same is true for drug policy and mental health policy (Garretsen & van de Goor, 2004;Pompidou Group, 2004).…”