- patients with known history of renal stones, diagnosis of hypercalcemia with the past year, baseline serum total calcium more than 10mg/dl, established diagnosis associated with increase the risk of hypercalcemia (e.g. metastatic cancer, sarcoidosis, multiple myeloma, primary hyperparathyroidism), and current vitamin d supplementation moreover, other exclusion criteria included those with known malignancy, with organ transplant, and those with known chronic autoimmune diseases and lastly those on systemic steroid for any cause

- patients with known history of renal stones, diagnosis of hypercalcemia with the past year, baseline serum total calcium more than 10mg/dl, established diagnosis associated with increase the risk of hypercalcemia (e.g. metastatic cancer, sarcoidosis, multiple myeloma, primary hyperparathyroidism), and current vitamin d supplementation moreover, other exclusion criteria included those with known malignancy, with organ transplant, and those with known chronic autoimmune diseases and lastly those on systemic steroid for any cause