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Title
The PHQ-9: validity of a brief depression severity measure.
Authors
Kroenke, K; Spitzer, R L; Williams, J B
Abstract
While considerable attention has focused on improving the detection of depression, assessment of severity is also important in guiding treatment decisions. Therefore, we examined the validity of a brief, new measure of depression severity.
Publication
Journal of general internal medicine, 2001, Vol 16, Issue 9, p606