錯把血鈣當成血糖來換算：
Normal Results
Normal values range from 8.5 to 10.2 mg/dL (0.47 to 0.57 millimol/L).
https://www.mountsinai.org/health-library/tests/calcium-blood-test
正確的是這一個：
In most cases, a normal blood calcium level for adults is 8.5 to 10.2 milligrams/deciliter (2.15 to 2.55 millimoles/liter).
https://my.clevelandclinic.org/health/diagnostics/22021-calcium-blood-test
