C. G, N. Devi N, S. Meenakshi, K. Karunanidhi, and S. Sathasivam, “Prevalence and Socio-Demographic status correlates of Upper Gastrointestinal Cancers: A Descriptive Cross Sectional Study from a Tertiary Care Hospital in Chennai, Tamil Nadu”, Asian Pac J Cancer Care, vol. 11, no. 6, pp. 909–915, Nov. 2026.