1.
Chumpitaz-Durand RB, Córdova-Sotomayor D Ángel. Prevalence and risk factors for extrinsic discoloration in deciduous dentition of Peruvian schoolchildren. Rev Fac Odontol Univ Antioq [Internet]. 2018 May 17 [cited 2025 Jan. 22];29(2):257-72. Available from: https://revistas.udea.edu.co/index.php/odont/article/view/325657