Costa, Rita, Diana Pissarra, Elson Salgueiro, João Maciel, Pedro Fernandes, Jorge Casanova, and Paulo Pinho. 2021. “THORACIC SURGERY IN A COVID-19 FRONTLINE HOSPITAL. ARE THE PATIENTS SAFE?”. Portuguese Journal of Cardiac Thoracic and Vascular Surgery 28 (2). Lisbon, Portugal:29-32. https://doi.org/10.48729/pjctvs.166.