This conference constitutes the first joint Colloquium of the Cochrane and Campbell Collaborations -leading organizations in the production of systematic reviews of the effectiveness of interventions in the fields of health and social care.With more posters, oral sessions and workshops than ever before -presented at one of the highest altitude scientific conference venues in the world, Keystone Conference Center -the meeting lives up to its theme: ''Bringing evidence-based decision making to new heights''.We thank all who have made this meeting a success, especially the attendees, presenters, members of the Colloquium committees, and the publishers of this book of poster, oral, and workshop