Incidence of anorrectal anomalies in a large mining area: a comparative study between the micro-region of óbidos and the national territory in the period of 2011-2020. RSD [Internet]. 2023 Apr. 8 [cited 2025 Jun. 29];12(4):e16912441162. Available from: https://ojs34.rsdjournal.org/index.php/rsd/article/view/41162