K. Nag, J. Pal, S. K. Sadhukhan, R. R. Pati, R. Dalmia, and A. Chatterjee, “Community-based assessment of bone health and associated factors among elderly in an urban slum of Kolkata, West Bengal: a cross-sectional study”, Int J Community Med Public Health, vol. 13, no. 9, pp. 5066–5073, Aug. 2026.