In this video Dr. Nasseh interviews Dr. Donald Nixdorf, on his recently published article in JOE with the title of Differential diagnsosis of pain after root canal therapy: Dr. Donald Nixdorf Interview
https://realworldendo.com/videos/differential-diagnosis-of-persistant-pain-after-root-canal-therapy-interview-with-dr-donald-nixdorf-university-of-minnesota