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www.fdanews.com/articles/133687-remote-controlled-capsule-endoscope-safely-examines-the-stomach

Remote-Controlled Capsule Endoscope Safely Examines the Stomach

January 21, 2011
A study from researchers in Germany showed that magnetic maneuvering of a modified capsule endoscope in the stomach of healthy volunteers under clinical conditions is safe, well-tolerated, and technically feasible.
ScienceDaily