Risk factors for oxygen requirement in hospitalized pregnant and postpartum women with COVID-19. Clinics, [S. l.], v. 77, p. 100072, 2022. DOI: 10.1016/j.clinsp.2022.100072. Disponível em: https://revistas.usp.br/clinics/article/view/213414.. Acesso em: 31 may. 2024.