TY - STAND AU - M. Frisher AU - J. Collins AU - D. Millson AU - I. Crome AU - P. Croft BT - J Epidemiol Community Health DO - 10.1136/jech.2003.017384 M1 - 12 PY - 2004 SP - 1036 EP - 41 T2 - J Epidemiol Community Health TI - Prevalence of comorbid psychiatric illness and substance misuse in primary care in England and Wales VL - 58 SN - 0143-005X (Print) 0143-005x ER -