James Mackenzie
Sir James Mackenzie (1853–1925), Scottish GP and pioneer cardiologist, invented the ink polygraph and defined arrhythmias, angina, and atrial fibrillation
Tag Mackenzie’s puzzle
Sir James Mackenzie (1853–1925), Scottish GP and pioneer cardiologist, invented the ink polygraph and defined arrhythmias, angina, and atrial fibrillation