Dr. Rakesh Kumar Pandey, Dr. Aruna Singh, Dr. Rakesh Patel, Dr. Amita Singh, Dr. Shailja Tiwari, and Dr. Santosh Pathak, “Study of Serum Vitamin B12 and Vitamin D Level amongst Medical Professionals in Tertiary Health Care Center, Rewa”, IJPRT, vol. 16, no. 2, pp. 3021–3027, Aug. 2026.