Summed score of the Patient Health Questionnaire-9 was a reliable and valid method for depression screening in chronically ill elderly patients

Femke Lamers, Catharina C.M. Jonkers, Hans Bosma, Brenda W.J.H. Penninx, J. André Knottnerus, J. Th. M. van Eijk

Journal of Clinical Epidemiology · 2008 · 191 citations · 36 references

Concepts

References

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