@misc{10118,
  author = {M. Frisher and J. Collins and D. Millson and I. Crome and P. Croft},
  title = {Prevalence of comorbid psychiatric illness and substance misuse in primary care in England and Wales},
  year = {2004},
  journal = {J Epidemiol Community Health},
  volume = {58},
  number = {12},
  pages = {1036-41},
  issn = {0143-005X (Print) 0143-005x},
  doi = {10.1136/jech.2003.017384},
}