Two biotech companies in the United States have been given the green light to see if it is possible to regenerate the brains of dead people. © Shutterstock Bioquark Inc., in collaboration with Revita Life Sciences, has been given ethical permission by US health authorities to recruit 20 patients who have been declared clinically dead from a traumatic brain injury to test whether parts of their central nervous system (CNS) can be brought back to life.
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