Pereira LV, Pereira G de A, Moura LA de, Fernandes RR. Pain intensity among institutionalized elderly: a comparison between numerical scales and verbal descriptors . Rev. Esc. Enferm. USP [Internet]. 2015 Oct. 1 [cited 2024 May 5];49(5):804-10. Available from: https://www.revistas.usp.br/reeusp/article/view/106712