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The diagnostic accuracy of the Patient Health Questionnaire-2 (PHQ-2), Patient Health Questionnaire-8 (PHQ-8), and Patient Health Questionnaire-9 (PHQ-9) for detecting major depression: protocol for a systematic review and individual patient [...]

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author: Brooke Levis  Lorie Kloda  Scott B. Patten  John Ioannidis  Pim Cuijpers  Ian Shrier 

Publication date October 27, 2014
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