Souza, B. F. N. de, C. C. de L. Santana, J. R. de Andrade, and M. M. Valença. “Efficiency Indicators for the Care of Patients With Headaches in the Emergency Department”. Headache Medicine, vol. 15, no. Supplement, Aug. 2024, p. 147, https://headachemedicine.com.br/index.php/hm/article/view/1293.