Mhlanga, Caroline, and Belinda Ndlovu. “Sentiment Analysis in Electronic Health Records for Patient-Centric Care: A Systematic Literature Review of Methods, Applications, and Challenges”. Journal of Information Systems and Informatics, vol. 8, no. 2, Apr. 2026, pp. 1740-75, https://doi.org/10.63158/journalisi.v8i2.1545.