There was little precedent in other diseases for such an astonishing diversity of causes. Diabetes, a complex illness with complex manifestations, is still fundamentally a disease of abnormal insulin signaling. Coronary heart disease occurs when a clot, arising from a ruptured and inflamed atherosclerotic plaque, occludes a blood vessel of the heart. But the search for a unifying mechanistic description of cancer seemed to be sorely missing. What, beyond abnormal, dysregulated cell division, was the common pathophysiological mechanism underlying cancer? To answer this question, cancer
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