A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2019; you can also visit the original URL.
The file type is application/pdf.
Alexander Hann, Benjamin M Walter, Niklas Mehlhase, Alexander Meining. "Virtual reality in GI endoscopy: intuitive zoom for improving diagnostics and training." Gut 68.6 (2018) gutjnl-2018-317058