Potential benefits of anticoagulant doses of low molecular weight heparin in COVID-19: An observational retrospective study. Emergency Care Journal, [S. l.], v. 17, n. 3, 2021. DOI: 10.4081/ecj.2021.9795. Disponível em: https://www.pagepressjournals.org/ecj/article/view/9795. Acesso em: 12 may. 2026.