SUBMUCOSAL TUNNELING ENDOSCOPIC RESECTION FOR LARGE ESOPHAGEAL LEIOMYOMA: TECHNICAL ASPECTS AND RISK OF COMPLICATIONS ArticleДжантуханова С.В., Велизаде Л.А., Глотов А.В., Старков Ю.Г.Pirogov Russian Journal of Surgery. 2022. P.. 96-104