A simple tool to help ruling-out Covid-19 in the emergency department: derivation and validation of the LDH-CRP-Lymphocyte (LCL) score. Emergency Care Journal, [S. l.], v. 16, n. 3, 2020. DOI: 10.4081/ecj.2020.9336. Disponível em: https://www.pagepressjournals.org/ecj/article/view/9336. Acesso em: 12 may. 2026.