I have 35 years of experience and specialize in the field of biomedical engineering with specific knowledge in the areas of implantable neurostimulation, electrical injury and design of medical devices. I have published on such topics as the effect of electric fields on bone growth, failure analysis of implanted electronic devices and the design of implantable stimulators. I have testified 99 times on topics such as electric shock injury, medical device design and prevention of electrical injury.