1. Warren Alpert Medical School, Brown University, Providence, Rhode Island, USA
2. Department of Psychiatry, Rhode Island Hospital, Providence, Rhode Island, USA
3. Department of Medicine, Miriam Hospital, Providence, Rhode Island, USA
4. Department of Psychology, Miriam Hospital, Providence, Rhode Island, USA
5. Department of Psychiatry, Duke University Medical Center, Durham, North Carolina, USA
6. Ohio State University Wexner Medical Center, Institute for Behavioral Medicine Research & Comprehensive Cancer Center, Columbus, Ohio, USA
7. Department of Psychology, University of Massachusetts, Dartmouth, Massachusetts, USA