HEMA RAJENDRAN, N.; CHANDRASEKARAN, S.; THAYYIL, P.; JAYAKUMAR. Preoperative anxiety among patients undergoing cardiac surgery: a cross-sectional study from a tertiary care hospital in rural Tamil Nadu. International Journal Of Community Medicine And Public Health, [S. l.], v. 12, n. 11, p. 5007–5013, 2025. DOI: 10.18203/2394-6040.ijcmph20253675. Disponível em: https://www.ijcmph.com/index.php/ijcmph/article/view/14308. Acesso em: 13 nov. 2025.