The Patient Health Questionnaire-9 for detection of major depressive disorder in primary care: consequences of current thresholds in a crosssectional study
Nicolaas P. A. Zuithoff(Utrecht University), Mirjam I. Geerlings(Utrecht University), Yvonne Vergouwe(Leiden University), Michael King(University College London), Karel G.M. Moons(Utrecht University), Manja J van Wezep(University Medical Center Utrecht), Irwin Nazareth(The Royal Free Hospital)
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