1. Department of General Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
2. Department of Pulmonary & Critical Care Medicine, Mayo Clinic, Rochester, Minnesota, USA
3. Department of Education, Mayo Clinic, Rochester, Minnesota, USA
4. Center for Palliative Medicine, Mayo Clinic, Rochester, Minnesota, USA
5. Department of Psychiatry and Psychology, Mayo Clinic, Rochester, Minnesota, USA
6. Mayo Clinic Hospice, Mayo Clinic, Rochester, Minnesota, USA