1 Department for Evidence-based Medicine and Evaluation, University of Krems, Dr.-Karl-Dorrek-Straße 30, 3500, Krems, Austria. gerald.gartlehner@donau-uni.ac.at.
2 RTI International, Research Triangle Park, NC, USA. gerald.gartlehner@donau-uni.ac.at.
3 Center for Public Health, Department of Epidemiology, Medical University of Vienna, Kinderspitalgasse 15, 1090, Vienna, Austria.
4 Pathology, Hospital Graz II, Graz, Austria.
5 Johannes Kepler University, Linz, Austria.
6 Division of Oncology, Department of Medicine I, Medical University of Vienna, Vienna, Austria.
7 Tyrolean College of General Medicine, Medical University of Innsbruck, Innsbruck, Austria.
8 Austrian Society of Hematology and Oncology Nurses, Vienna, Austria.
9 Institute for Ethics and Law in Medicine, University of Vienna, Vienna, Austria.
10 Colorectal Cancer Patient Support Group, Vienna, Austria.
11 UMIT TIROL-University for Health Sciences and Technology, Hall in Tirol, Austria.
12 Harvard T.H. Chan School of Public Health, Boston, USA.
13 Institute for Technology Assessment, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.