Proceedings of the National Academy of Sciences of the United States of America, Vol. 89, No. 10 (May 15, 1992), pp. 4417-4421 (5 pages) It is universally believed that the removal of external sodium ...
When you have atrial fibrillation, the two upper chambers of your heart (atria) don't beat in sync with the two lower chambers (ventricles). This makes your heart beat out of rhythm and sometimes very ...
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