![An illustration of red blood cells](/sites/default/files/styles/16x9_one_third_default_1x/public/2023-11/red-blood_0_0.gif?h=c3fd1d45&itok=uDQ90XMS)
An international clinical trial led by physician Jeffrey L. Carson, Distinguished Professor of Medicine, found that a liberal blood transfusion given to patients who have had a heart attack and have anemia may reduce the risk of a reoccurrence and improve survival rates.