Yohei Koyama

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Publications (7)
Sakiko Naito, Itaru Nakamura, Tomohiro Umezu
Yohei Koyama, Masakatsu Fukuzawa, Hiroyuki Aikawa

Get your video featured.

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Sakiko Naito, Itaru Nakamura, Tomohiro Umezu
Yohei Koyama, Masakatsu Fukuzawa, Hiroyuki Aikawa

A Suture Technique for Ruptured Annulus Fibrosus Following Decompression Under Percutaneous Transforaminal Endoscopic Discectomy
Published on : Jan 26, 2024

Structured Approach to Colonoscopy Technique Optimization: A Single-Center Experience with Novice Endoscopists
Published on : Jul 11, 2025

ADSC-sheet Transplantation to Prevent Stricture after Extended Esophageal Endoscopic Submucosal Dissection
Published on : Feb 10, 2017