A 30-year-old Michigan man can smell, swallow, blink and smile for the first time in a decade thanks to a face transplant at Mayo Clinic. In the last 20 years, just a little more than 50 face transplants have been performed worldwide. This is the second face transplant completed at Mayo Clinic. For Derek Pfaff, the transformational surgery has been life-changing. Watch: Derek Pfaff’s story https://youtu.be/Nkr8xkHiKQM Journalists: Broadcast-quality video (6:32) is in the downloads at…