1. From the Connecticut Office of the Chief Medical Examiner, Farmington, Connecticut, (Gill).
2. From the Department of Pathology, Yale School of Medicine, New Haven, Connecticut (Gill).
3. From the Wayne County Medical Examiners' Office, Detroit, Michigan (Tashjian).
4. From the Department of Pathology, University of Michigan, Ann Arbor (Tashjian).
5. From the Jesse E. Edwards Registry of Cardiovascular Disease, St Paul, Minnesota (Duncanson).