Dr. Joseph Greer is Co-Director of the Cancer Outcomes Research & Education (CORE) Program at the Massachusetts General Hospital Cancer Center, a Clinical Psychologist in the MGH Center for Psychiatric Oncology & Behavioral Sciences, and an Associate Professor of Psychology at Harvard Medical School.  Dr. Greer's clinical work focuses on the delivery of cognitive-behavioral therapy (CBT) to help patients and their families cope with cancer. In addition, he collaborates with a multidisciplinary research team to develop and test supportive care interventions aimed at improving quality of life, mood, and quality of care for patients with cancer.