No abstract available
MeSH terms
-
COVID-19 / complications
-
COVID-19 / diagnosis*
-
COVID-19 / pathology
-
COVID-19 Testing
-
Esophageal Diseases / pathology
-
Esophageal Diseases / virology*
-
Humans
-
Male
-
Middle Aged
-
Peptic Ulcer / pathology
-
Peptic Ulcer / virology*