Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) KERLIN P.,Prevalence of eosinophilic esophagitis in adults with food bolus obstrucion of the esophagus,J Clin Gastroenterol.,,,2007,41,,356-361,https://cir.nii.ac.jp/crid/1572824500605711360,