Dong, C.- hui ., Chen, S.- yu ., Zeng, H.- lian ., Yang, B. ., & Pan, J. . (2021). Geriatric nutritional risk index predicts all-cause mortality in patients with heart failure: A systematic review and meta-analysis. Clinics, 76, e2258. https://doi.org/10.6061/clinics/2021/e2258