Metabolic alterations most frequently found were: hypercalciuria (38.3%), hypocitraturia (29.6%) and hyperexcretionof uric acid (21.6%).
Luis A. B. Peres, André S. Molina, Marcos H.L. Galles 2003, 'Metabolic investigation of patients with urolithiasis in a specific region', International Brazilian Journal of Urologyhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-55382003000300004. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)