1. Cluster analysis;Aldenderfer,1984
2. Schizophrenia: A life shortening disease;Allebeck;Schizophrenia Bulletin,1989
3. Relationships between substance abuse and psychopathology: Overview;Alterman,1985
4. Alcohol abuse in the psychiatric population;Alterman;Addictive Behaviors,1981
5. Diagnostic and statistical manual of mental disorders, (3rd ed.);American Psychiatric Association,1987