“ Evaluation of Anxiety in Preoperative Patients: State-Trait Anxiety Inventory Instrument (STAI)”. Revista Contexto & Saúde 25, no. 50 (April 28, 2025): e15093. Accessed August 20, 2026. https://www.revistas.unijui.edu.br/contextoesaude/article/view/15093.