1. Center for Clinical and Genetic Economics, Duke Clinical Research Institute
2. Berman Institute of Bioethics, The Johns Hopkins University, Baltimore, MD, USA
3. RxTrials, Inc, Ellicott City, MD, USA
4. Center for Clinical and Genetic Economics, Duke Clinical Research Institute, Department of Medicine, Duke University School of Medicine, Durham, NC, USA
5. Center for Clinical and Genetic Economics, Duke Clinical Research Institute, , Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC, USA