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. 2020 Jul 14;26(26):3767–3779. doi: 10.3748/wjg.v26.i26.3767

Figure 1.

Figure 1

A scheme depicting the working channel of a duodenoscope. Insertion tube (130 cm) starting from the biopsy channel opening at the proximal part (A) and bending section (10 cm) proximal to the elevator mechanism (B).