Every week, two million people across the world will sit for hours, hooked up to a whirring, blinking, blood-cleaning dialysis machine. Their alternatives: Find a kidney transplant or die. In the US, dialysis is a roughly 40-billion-dollar business keeping 468,000 people with end-stage renal disease alive. The process is far from perfect, but that hasn't hindered the industry's growth.
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Science, Spoken