Ungefehr, Christine, Thiago Moura Ribas de Oliveira, Kadidja Valéria Reginaldo de Oliveira, and Sylvana Karla S. L. Santos. " Tool for early identification of Depressive Symptoms based on the PHQ-9." Companion Proceedings of the 24th Brazilian Symposium on Human Factors in Computational Systems, Belo Horizonte/MG, 2025. SBC, 2025, pp.83-87.