We recommend that you install the F-Droid client and use that. And once you've scanned the code, you can open or share its URL the website it points to freely. They make it easy for patients to give feedback by adding a Feedback QR Code on the take-home paperwork all patients receive. They can be great time-savers, but they're not always obvious in how to use them, particularly if you have an older Android phone. Version 4.
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