Four part interview with Terry Lowry here:
https://www.terrylowry.com/audio/121205DrKeithSmith1.mp3
https://www.terrylowry.com/audio/121205DrKeithSmith2.mp3
https://www.terrylowry.com/audio/121205DrKeithSmith3.mp3
https://www.terrylowry.com/audio/121205DrKeithSmith4.mp3