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medxclusive: [Play the video for animation/explanation!] Pyloric
![medxclusive: [Play the video for animation/explanation!] Pyloric](http://64.media.tumblr.com/99120f9072cf726eada84192490bba2f/823c8fda02bc4c0e-94/s512x512u_c1/4139ca8069d15a9da736eff43974ff3bb6c03da2.png)