Costa, R., Pissarra, D., Salgueiro, E., Maciel, J., Fernandes, P., Casanova, J. and Pinho, P. 2021. THORACIC SURGERY IN A COVID-19 FRONTLINE HOSPITAL. ARE THE PATIENTS SAFE?. Portuguese Journal of Cardiac Thoracic and Vascular Surgery. 28, 2 (Jul. 2021), 29–32. DOI:https://doi.org/10.48729/pjctvs.166.