KURT, E.; EKE KURT, S. Z. Predictive value of blood urea nitrogen to serum albumin ratio in estimating in-hospital mortality in patients with upper gastrointestinal bleeding. European Journal of Clinical and Experimental Medicine, [S. l.], v. 20, n. 3, p. 342–347, 2022. DOI: 10.15584/ejcem.2022.3.13. Disponível em: https://journals.ur.edu.pl/ejcem/article/view/11970. Acesso em: 28 dec. 2025.