@misc{10068,
  author = {M. Frisher and I. Crome and J. Macleod and D. Millson and P. Croft},
  title = {Substance misuse and psychiatric illness: prospective observational study using the general practice research database},
  year = {2005},
  journal = {J Epidemiol Community Health},
  volume = {59},
  number = {10},
  pages = {847-50},
  issn = {0143-005X (Print) 0143-005x},
  doi = {10.1136/jech.2004.030833},
}