| Epidemiology and Biometry Branch, National Institute on Alcohol Abuse and Alcoholism, Rockville, Maryland. |
| From the Laboratory of Epidemiology and Biometry, Division of Intramural Clinical and Biological Research, National Institute on Alcohol Abuse and Alcoholism, Rockville, Md.; the Department of Epidemiology, Mailman School of Public Health, and the Department of Psychiatry, College of Physicians and Surgeons, Columbia University, New York; and the New York State Psychiatric Institute, New York. |
| Laboratory of Epidemiology and Biometry, Division of Intramural Clinical and Biological Research, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Rockville, Maryland. |