title: Preferred provider organizations and mental health care.
mesh_terms: D002140:California; D003625:Data Collection; D006801:Humans; D007348:Insurance, Health; D007358:Insurance, Psychiatric; D008605:Mental Health Services / Q000191:economics*; D011243:Preferred Provider Organizations; D012017:Referral and Consultation; D019966:Substance-Related Disorders / Q000191:economics