Horodnic, Adrian Vasile, et al. “Evaluating Socio-Economic Variations in the Prevalence of Chronic Diseases: Some Evidence from Romania”. Social Research Reports, vol. 27, Dec. 2015, pp. 35-48, https://www.researchreports.ro/journal/article/view/323-evaluating-socio-economic-variations-in-the-prevalence-of.