William Hallahan works in the field of Cardiology. He researched medicine at George Washington University School of Medicine. George Washington University School of Medicine has a rank of 67 in research and a 0 in primary care He has 1 awards "Fellow (FACC)". William Hallahan is a published MD. He published 5 publications, including: 'Detection of tricuspid regurgitation and estimation of central venous pressure by two-dimensional contrast echocardiography of the right superior hepatic vein.'
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