A flawed study?
Hedquist
P M
PM
D006801:Humans; D007484:Iowa; D008605:Mental Health Services / Q000458:organization & administration*; D017063:Outcome Assessment, Health Care / Q000592:standards*; D012017:Referral and Consultation / Q000458:organization & administration*; D019966:Substance-Related Disorders / Q000175:diagnosis* / Q000628:therapy*