![](http://www.alamy.com/thumbs/6/C421F3C9-BDB5-4A29-8629-BFBC54DE14EE/D15WME.jpg)
Doctor shows information on blackboard: colonoscopy
Size: 3500px × 2626px
Photo credit: © gwolters / Alamy / Afripics
License: Royalty Free
Model Released: Yes
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