Ectopic esophageal sebaceous glands: a case report - Zhang, Tianzhi; Huang, Jianxian; Wang, Bingyang; Zhang, Jiangyu; Liao, Dingzhun; Zhu, Junfeng; Xue, Ling (Digestive Medicine Research; Vol 6 (September 30, 2023): Digestive Medicine Research, 2023)