Ágústsdóttir, F., Daníelsdóttir, S., & Íslands, H. (2018). The psychometric properties of the Patient Health Questionnaire (PHQ-9) in a sample of individuals 40 years and older from the Icelandic population.
Chicago Style (17th ed.) CitationÁgústsdóttir, Freyja, Sara Daníelsdóttir, and Háskóli Íslands. The Psychometric Properties of the Patient Health Questionnaire (PHQ-9) in a Sample of Individuals 40 Years and Older from the Icelandic Population. 2018.
MLA (9th ed.) CitationÁgústsdóttir, Freyja, et al. The Psychometric Properties of the Patient Health Questionnaire (PHQ-9) in a Sample of Individuals 40 Years and Older from the Icelandic Population. 2018.
Warning: These citations may not always be 100% accurate.