title: Eosinophil: the new lord of (esophageal) rings.
authors.forename: David A
authors.initials: DA
authors.lastname: Katzka
mesh_terms: D000328:Adult; D000367:Age Factors; D001706:Biopsy; D003937:Diagnosis, Differential; D004802:Eosinophilia / Q000175:diagnosis*; D004941:Esophagitis / Q000175:diagnosis*; D004945:Esophagoscopy; D005502:Food; D006801:Humans; D008875:Middle Aged