| http://www.w3.org/ns/prov#value | - surface side of the insertion section of the endoscope and is connected to the distal end of the advancing and retracting member and capable of projecting from the distal end of the insertion section according to an advancing and retracting movement of the advancing and retracting member, and a fluid supplying and discharging unit including a conduit that is connected to the balloon member and inf
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