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Scientists have once again created a new tool in the stiff battle against erectile dysfunction—and this time, it doesn’t involve a pill.

Researchers in China published a study in the journal Matter on Jan. 4 where they created an artificial tissue that restored erectile function in pigs. The material, dubbed artificial tunica albuginea (ATA), imitates the tunica albuginea tissue in penises that’s used to create and maintain erections. The team believes that it could one day help...

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