SCHMIDT, C et al. The utility of procalcitonin as a biomarker of hospital-acquired infection in severe COVID-19. African Journal of Thoracic and Critical Care Medicine, [S. l.], v. 30, n. 4, p. e1617, 2024. DOI: 10.7196/AJTCCM.2024.v30i4.1617. Disponível em: https://samajournals.co.za/index.php/ajtccm/article/view/1617. Acesso em: 12 nov. 2025.