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buy asacol online uk In the study, Ghovanloo and his colleagues tested the device in 11 participants with tetraplegia and in 23 able-bodied participants. All participants received the magnetic tongue piercing. The participants then completed various tasks, such as clicking on targets on a computer screen, playing video games, dialing phone numbers and driving a powered wheelchair through an obstacle course, all by touching their tongues to the left and right inside edges of their teeth.