Oliveira, E. C. T., Louvison, M. C. P., Duarte, Y. A. D. O., Andrade, F. B. D. (2025). Socioeconomic inequalities related to perceived difficulty in accessing health services among older adults: A cross-sectional analysis of SABE Study Data. PLoS ONE. https://doi.org/10.1371/journal.pone.0322333