I have 43 years of experience, and specialize in the field of medical devices and instrumentation with specific knowledge in the areas of tasers, ablation and pacemakers. I have published on such topics as tasers, ablation and pacemakers. I have testified 13 times on topics such as tasers, ablation and pacemakers. Developed 17 books, 200 peer-reviewed journal articles. I teach 2 courses each semester.