Prevalencia de blee en escherichia coli en el Hospital Regional de Concepción entre los semestres enero 2023 – junio 2024: PREVALENCE OF ESBL IN ESCHERICHIA COLI IN THE REGIONAL HOSPITAL OF CONCEPCION BETWEEN THE SEMESTERS JANUARY 2023 – JUNE 2024. Medicinae Signum . 2025;3(1):7-20. Accessed December 5, 2025. https://revistas.unc.edu.py/index.php/fmunc/article/view/270