AMES, Iowa – In a recent class session devoted to reviewing the components of a monogastric digestive system, Alexandra Else-Keller reminded an animal science student how to position her fingers as ...
An aortic dissection—a tear in the inner layer of the main artery—is a life-threatening emergency. It can happen with little warning, as apparently was the case with U.S. Sen. Lindsey Graham. His ...
A 74-year-old man presents to the emergency department with a 1-day history of severe chest and back pain. He has a history of hypertension and has run out of medication. He has no history of similar ...
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