Supplementation of folic acid in deficient patients can improve the histopathological findings of chronic<unk>  and reduce the incidence of gastric cancer.
Atrophic gastritis
Lymphocytic esophagitis
Herpes esophagitis
Tropical ulcer
Gastric lymphoma
Eosinophilic esophagitis
Barrett's esophagus
Cytomegalovirus esophagitis