Mehta , Dhyani, and Valentina V. Derbeneva. “The Asymmetric Impact of Health Expenditure, Bottom Decile Income, and Trade Openness on BRICS Health Indicators”. Economy of Regions 21, no. 2 (June 30, 2025): 394–411. Accessed July 1, 2025. https://www.economyofregions.org/ojs/index.php/er/article/view/997.