[GS-173] construct a multicenter database for endoscopic surgery in obstetrics and gynecology
○Shin Takenaka1, Yuki Koike1, Shun Odajima1, Koji Matsumoto2, Hiroshi Tanabe1(1.Department of gynecology, National cancer center hospital east, Chiba, Japan, 2.Department of obstetrics and gynecology, Showa university hospital, Tokyo, Japan)
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