PHQ-9 сэтгэл гутралын скрининг асуумж

Эх сурвалж ба лиценз: Pfizer / Kroenke et al. (2001). Publicly available for clinical and research use without fee. · Kroenke K, Spitzer RL, Williams JB. (2001). The PHQ-9: validity of a brief depression severity measure. J Gen Intern Med.