The white ring sign is useful for differentiating between fundic gland polyps and gastric adenocarcinoma of the fundic gland type - Keitaro Takahashi; Takahiro Sasaki; Nobuhiro Ueno; Haruka Maguchi; Shion Tachibana; Ryunosuke Hayashi; Yu Kobayashi; Yuya Sugiyama; Aki Sakatani; Katsuyoshi Ando; Shin Kashima; Kentaro Moriichi; et al. (Endoscopy International Open, 2024)