Medicine
Interquartile range
Pandemic
Asymptomatic
Coronavirus disease 2019 (COVID-19)
Elective surgery
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
Perioperative
Retrospective cohort study
2019-20 coronavirus outbreak
Emergency medicine
General surgery
Surgery
Internal medicine
Outbreak
Disease
Infectious disease (medical specialty)
Virology
