Kumar, N., Garg, N. and Gupta, I. (2017) “Correlation of intact parathormone levels with serum calcium, serum phosphorus and serum vitamin d levels in surgical patients”, Surgical Review: International Journal of Surgery, Trauma and Orthopedics, 3(4), pp. 137-142. doi: 10.17511/ijoso.2017.i04.08.