Universidad Nacional Autonoma De Mexico 1

1. Comparing metrics for mixed quantum states: Sjöqvist and Bures
2. Motion of stars near the galactic center
3. Machine learning risk prediction of mortality for patients undergoing surgery with perioperative SARS-CoV-2: The COVIDSurg mortality score
4. Impact of Bacillus Calmette-Gue´rin (BCG) vaccination on postoperative mortality in patients with perioperative SARS-CoV-2 infection
1