Dynamics of endoscopic snares: a new approach towards more practical and objective performance evaluation - Yamasaki, Yasushi; Takeuchi, Yoji; Ushimaru, Yuki; Matsuura, Noriko; Yamaguchi, Tsuyoshi; Nitta, Shun; Agatsuma, Masaomi; Okada, Hiroyuki; Nakajima, Kiyokazu (Endoscopy International Open, 2020)