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Source: PHQ-9 copyright 2005, Pfizer, permission granted. The PHQ-9 assessment is adapted from PRIME MD TODAY and developed by RL Spitzer, JBW Williams, K Kroenke, et al.
|Primary Medical Reviewer||Kathleen Romito, MD - Family Medicine|
|Specialist Medical Reviewer||Lisa S. Weinstock, MD - Psychiatry|
|Last Revised||March 18, 2011|