at work, school, or home.
6. Continued use of the substance despite having persistent or recurrent social or in-
terpersonal problems caused or exacerbated by the effects of its use.
7. Important social, occupational, or recreat ional activities are given up or reduced be-
cause of use of the substance.
8. Recurrent use of the substance in situations in which it is physically hazardous.
9. Use of the substance is continued despite knowledge of having a persistent or re-
current physical or psychological problem that is likely to have been caused or ex-
acerbated by the substance.