TY - GEN C4 - This grey literature reference is included in the Academy's Literature Collection in keeping with our mission to gather all sources of information on integration. Grey literature is comprised of materials that are not made available through traditional publishing avenues. Often, the information from unpublished resources can be limited and the risk of bias cannot be determined. C5 - Grey Literature CY - Washington, D.C. PB - National Council for Community Behavioral Health Care PP - Washington, D.C. PY - 2005 T1 - Patient Health Questionnaire (PHQ-9) TI - Patient Health Questionnaire (PHQ-9) U1 - Grey Literature U4 - This grey literature reference is included in the Academy's Literature Collection in keeping with our mission to gather all sources of information on integration. Grey literature is comprised of materials that are not made available through traditional publishing avenues. Often, the information from unpublished resources can be limited and the risk of bias cannot be determined. Y1 - 2005 ER -