In descriptive models, there is Gorski's Cenaps model which pays special attention to post-acute withdrawal symptoms and Gorski's relapse prevention model Wallace for cocaine users who tailors relapse prevention to this population. Drug-specific protocols include plans specifically for the treatment of alcoholism, marijuana, and cocaine. Finally, integrated ambulatory models include recovery training and self-help, the Washton Intensive Ambulatory Model, and the Matrix Neurobehavioral Model. Their similarities include the common goal of preventing relapse through education, assessment, and individualized plans supporting change and maintenance of recovery. Weaknesses include the fact that some of the prevention plans are limited to specific drugs, but this is also a strength in that various drugs affect people differently, such as a crack addict or an alcoholic. Gorski's Cenaps model has particular strength because it specifically covers post-acute withdrawal symptoms that can occur with abstinence, as well as the process and relapse (Rawson, Obert, McCann, and Marinelli-Casey).,