1. Center for Human Genetics Research; Department of Molecular Physiology and Biophysics; Vanderbilt University; Nashville; TN
2. Department of Thoracic Surgery; Division of Epidemiology and Center for Human Genetics Research; Vanderbilt University; Nashville; TN
3. Department of Medicine; Vanderbilt University; Nashville; TN
4. International Epidemiology Institute; Rockville; MD
5. Nutritional Epidemiology Branch; Division of Cancer Epidemiology and Genetics; National Cancer Institute; Bethesda; MD