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USMLE Gastrointestinal System Question Bank
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The gastrointestinal tract (GIT) is the system of organs that allows for the consumption and digestion of food, absorption of nutrients, and excretion of waste in the form of fecal matter.

USMLE Gastrointestinal System Question Bank
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1 Questions

1. What is the number one cause of painless rectal bleeding in the elderly?