A twin study of psychomotor performance during alcohol intoxication: early results
Adoption studies of alcoholism
Cigarette smoking, use of alcohol, and leisure-time physical activity among same-sexed adult male twins
Methodologic problems in matched-pair studies using twins
Preliminary findings from a twin study of alcohol use
Structural analysis of smoking, alcohol use, and personality factors in MZ and DZ twin pair relationships
Twin similarity for usage of common drugs
Twin studies on substance abuse: an overview