1. Department of Health Sciences Research, Mayo Clinic, Rochester, Minnesota.
2. College of Nursing, The Ohio State University, Columbus, Ohio.
3. The Links, Incorporated, Washington, Distict of Columbia.
4. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Rochester, Minnesota.
5. Department of Neurology, Emory University, Atlanta, Georgia.
6. Department of Medicine, Division of Cardiovascular Diseases, Mayo Clinic, Rochester, Minnesota.
7. Department of Radiation Oncology, Mayo Clinic, Scottsdale, Arizona.