https://www.semanticscholar.org/topic/Hypercalciuria/10559
Hypercalciuria | Semantic Scholar
Excretion of abnormally high level of CALCIUM in the URINE, greater than 4 mg/kg/day.
https://www.jci.org/articles/view/127750/pdf
JCI - Claudin-2 deficiency associates with hypercalciuria in mice and human kidney stone disease
https://www.cochrane.org/evidence/CD006022_dietary-interventions-preventing-complications-idiopathic-hypercalciuria
Dietary interventions for preventing complications in idiopathic hypercalciuria | Cochrane