Home » BBC News - Technology » technology news » Japan tracks dementia patients with QR codes attached to fingernails Japan tracks dementia patients with QR codes attached to fingernails Unknown 7:18 AM BBC News - Technology technology news A Japanese city is tracking elderly dementia patients by attaching barcodes to their fingernails. from BBC News - Technology http://ift.tt/2hohCTq Share: Facebook Twitter Google+ StumbleUpon Digg Delicious LinkedIn Reddit Technorati