Pilot of a randomized prospective observational study of vitamin D deficiency as a predictor of postoperative hypocalcemia in a cohort of patients undergoing total thyroidectomy. - S, Radhika Vijai; Jayarajan, Ekalavyan; Pillai, Anoop V.; Ramachandran, Riju; Bhaskaran, Renjitha (Formosan Journal of Surgery, 2025)