D. . Minhas, A. . Dhawan, U. . Bhardwaj, V. . Gambhir, S. P. . Dalai, and B. . Vamalatha, “Intellectual Performance and Serum Vitamin D Levels in Elderly: A Systematic Investigation”, Seminars in Medical Writing and Education, vol. 3, p. 527, Dec. 2024, doi: 10.56294/mw2024527.