Reference: Linhares, D. S. P., Garcia, P. V., Goulart, S., Sebastião, C., Mota Preto, P., & Rodrigues, A. S. (2018). Risk factors and chemical composition of urinary stones in the Azorean population (São Miguel Island - Portugal): a preliminary study. Acta Urológia Portuguesa, 35(1-2), 32–38.