At day 14, no one had hypercalcemia, and mean serum total calcium (G1: 2.3 ± 0.1 mmol/L and G2: 2.2 ± 0.1 mmol/L; P = 0.11) and PTH (G1: 33.1 ± 11.0 ng/L; G2: 36.4 ± 9.0 ng/L, P = 0.37) were similar in both groups; the mean change in serum PTH was negative in G1 (−1.8 ± 7.2 ng/L) and positive (5.5 ± 7.1 ng/L) in G2 (P < 0.01). Here, PTH is linked to hypercalcemia disease.