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Scientists Grow Vocal Cord Tissue

Most people have temporarily lost their voice at some point due to laryngitis – a throat infection – or from too much screaming at events such as football games or concerts. But for millions of people worldwide, damage to their vocal cords is permanent, according to Nathan Welham, a University of Wisconsin speech-language pathologist. “Certain congenital problems or scarring or tissue loss following surgery … can cause substantial voice loss that can be very challenging to treat with...

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