Hoàng, Thị Tuyết, et al. “Sex Differences in Components of the GDS-15 Depression Scale Among Hospitalised Older Patients With Heart Failure at Thong Nhat Hospital”. Journal of Health and Aging, vol. 2, no. 9, Oct. 2026, pp. 48-54, https://doi.org/10.63947/bvtn.v2i9.6.