Impact of skill and experience of the endoscopist on the outcome of endoscopic sphincterotomy techniques.
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E. G. Hahn | C. Ell | T. Rabenstein | H. T. Schneider | A. Katalinic | M. Nicklas | T. Ruppert | H. Schneider | E. Hahn | Eckhart G. Hahn | Thomas Rabenstein | H. Schneider | Michael Nicklas | Thomas Ruppert | Alexander Katalinic | Christian Ell