A Likelihood Approach to Analysing Longi
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Jennifer S. K. Chan; Anthony Y. C. Kuk; James Bell
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Article
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1997
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John Wiley and Sons
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English
β 551 KB
To study the effect of methadone h-eatment in reducing multiple drug use, say heroin and benzodiazepines while controlling for their possible interaction, we analyse the results of urine drug screens from patients in treatment at a Sydney clinic in 1986. Weekly tests are either positive or negative