Experimental endoscopic submucosal dissection training in a porcine model: Learning experience of skilled western endoscopists

Frieder Berr, Thierry Ponchon, Daniel Neureiter, Tobias Kiesslich, Jelle Haringsma, Georg F. Kaehler, Friedrich Schmoll, Helmut Messmann, Naohisa Yahagi, Tsuneo Oyama