<style face="normal" font="default" size="100%">Prevalence of comorbid mental illness and drug use recorded in general practice: preliminary findings from the general practice research database</style>

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31<style face="normal" font="default" size="100%">Prevalence of comorbid mental illness and drug use recorded in general practice: preliminary findings from the general practice research database</style><style face="normal" font="default" size="100%">Prevalence of comorbid mental illness and drug use recorded in general practice: preliminary findings from the general practice research database</style>