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

L.M. Lamers, C.C.M. Jonkers, H. Bosma, B.W.J.H. Penninx, J.A. Knottnerus, J.T. van Eijk

    Research output: Contribution to JournalArticleAcademicpeer-review

    Original languageEnglish
    Pages (from-to)679-687
    JournalJournal of Clinical Epidemiology
    Issue number7
    Publication statusPublished - 2008

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