Analysis of the effectiveness of external chest compressions performed by firemen during training in the Covid-19 pandemic. Research, Society and Development, [S. l.], v. 11, n. 7, p. e33811730032, 2022. DOI: 10.33448/rsd-v11i7.30032. Disponível em: https://rsdjournal.org/rsd/article/view/30032. Acesso em: 5 dec. 2025.