An evaluation of the accuracy and self-reported confidence of clinicians in using the ASA-PS Classification System - Silveira, Saullo Queiroz; Silva, Leopoldo Muniz da; Gomes, Ronald Figueiredo; Abib, Arthur de Campos Vieira; Vieira, Joaquim Edson; Ho, Anthony M-H; Lima, Helidea de Oliveira; Bellicieri, Fernando Nardy; Camire, Daenis; Nersessian, Rafael Sousa Fava; Mizubuti, Glenio B (Journal of clinical anesthesia, 2022)