I have 25 years of experience, and specialize in the field of neurology with specific knowledge in the areas of multiple sclerosis (MS), Lyme disease and chronic fatigue syndrome. I have published on such topics as treatments for cognition and fatigue for MS, pediatric MS and Lyme disease. I have testified on chronic fatigue syndrome, Lyme disease and multiple sclerosis. Early on in my career identified basic questions relative to quality of life in chronic disease.