| Biometry Branch, Division of Biometry and Epidemiology, National Institute on Alcohol Abuse and Alcoholism, Bethesda, Maryland, USA. |
| Division of Biometry and Epidemiology, National Institute on Alcohol Abuse and Alcoholism, Bethesda, Maryland 20852-7003, USA. |
| Division of Biometry and Epidemiology, National Institute on Alcohol Abuse and Alcoholism, Bethesda, Maryland 20892-7003, USA. |
| Division of Biometry and Epidemiology, National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD 20852-7003, USA. |
| Division of Biometry and Epidemiology, National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD 20892-7003, USA. |
| Division of Biometry and Epidemiology, National Institute on Alcohol Abuse, and Alcoholism, Bethesda, MD 20892-7003, USA. |
| Division of Biometry and Epidemiology, National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD 20892-7003, USA. bgrant@willco.niaaa.nih.gov |
| Laboratory of Epidemiology and Biometry, Division of Intramural Clinical and Biological Research, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892-9304, USA. bgrant@willco.niaaa.nih.gov |