@article{article, title = {{Impact of Bacillus Calmette-Guérin (BCG) vaccination on postoperative mortality in patients with perioperative SARS-CoV-2 infection}}, publisher = {{Oxford University Press (OUP)}}, url = {{}}, year = {{2022}}, month = {{1}}, author = {{COVID Surg Collaborative}}, doi = {{10.1093/bjsopen/zrab131}}, volume = {{5}}, journal = {{BJS Open}}, issue = {{6}}, note = {{Accessed on 2024/12/22}}}