Thombs, B. D., Benedetti, A., Kloda, L. A., Levis, B., Nicolau, I., Cuijpers, P., . . . Ziegelstein, R. C. (2014). The diagnostic accuracy of the Patient Health Questionnaire-2 (PHQ-2), Patient Health Questionnaire-8 (PHQ-8), and Patient Health Questionnaire-9 (PHQ-9) for detecting major depression: Protocol for a systematic review and individual patient data meta-analyses. Syst Rev.
Chicago ZitierstilThombs, Brett D., et al. "The Diagnostic Accuracy of the Patient Health Questionnaire-2 (PHQ-2), Patient Health Questionnaire-8 (PHQ-8), and Patient Health Questionnaire-9 (PHQ-9) for Detecting Major Depression: Protocol for a Systematic Review and Individual Patient Data Meta-analyses." Syst Rev 2014.
MLA ZitierstilThombs, Brett D., et al. "The Diagnostic Accuracy of the Patient Health Questionnaire-2 (PHQ-2), Patient Health Questionnaire-8 (PHQ-8), and Patient Health Questionnaire-9 (PHQ-9) for Detecting Major Depression: Protocol for a Systematic Review and Individual Patient Data Meta-analyses." Syst Rev 2014.