No abstract available
MeSH terms
-
Adolescent
-
Adult
-
Aged
-
Aged, 80 and over
-
COVID-19 / epidemiology
-
COVID-19 Testing / methods*
-
Child
-
Endoscopy
-
Humans
-
Middle Aged
-
Neoplasms / surgery*
-
Preoperative Care
-
Prevalence
-
Retrospective Studies
-
Tokyo / epidemiology
-
Tomography, X-Ray Computed / methods*
-
Young Adult