R, N., M, S., & P, V. d. V. (2026). Measurement stability and differential domain-specific trajectories of the PHQ-9 in late-life depression: Evidence from a collaborative care trial. Journal of affective disorders, 413, 122171. https://doi.org/10.1016/j.jad.2026.122171
Παραπομπή σε μορφή Chicago (17η εκδ.)R, Ndukwe, Scazufca M, και Van de Ven P. "Measurement Stability and Differential Domain-specific Trajectories of the PHQ-9 in Late-life Depression: Evidence from a Collaborative Care Trial." Journal of Affective Disorders 413 (2026): 122171. https://doi.org/10.1016/j.jad.2026.122171.
Παραπομπή σε μορφή MLA (9th εκδ.)R, Ndukwe, et al. "Measurement Stability and Differential Domain-specific Trajectories of the PHQ-9 in Late-life Depression: Evidence from a Collaborative Care Trial." Journal of Affective Disorders, vol. 413, 2026, p. 122171, https://doi.org/10.1016/j.jad.2026.122171.