Prevalence and socioeconomic correlates of depression, anxiety and stress among undergraduate students from reserved social categories in a rural college of West Bengal: a cross-sectional study - Kousik Nag; Jayita Pal; Sanjoy Kumar Sadhukhan; Dhiren Kumar Ruidas; Vibhuti Vaibhav; Arindam Chatterjee (International Journal Of Community Medicine And Public Health, 2026)