Overtime Working Hours and Depression: Questionnaire Survey Using the Patient Health Questionnaire (PHQ-9): Chronobiology International: Vol 28, No 5

Chronobiology International

The Journal of Biological and Medical Rhythm Research

Volume 28, 2011 - Issue 5

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"Overtime Working Hours and Depression: Questionnaire Survey Using the Patient Health Questionnaire (PHQ-9)." Chronobiology International, 28(5), pp. 474–475

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