Optimal Biopsy Protocol to Evaluate Histological Effectiveness of Proton Pump Inhibitor Therapy in Patients with Eosinophilic Esophagitis. - Fujiwara Y; Hashimoto A; Uemura R; Sawada A; Otani K; Tanaka F; Yamagami H; Tanigawa T; Watanabe T; Kabata D; Kuwae Y; Shintani A; et al. (Digestion, 2019)