I have 24 years of experience and specialize in the field of chiropractic medicine with specific knowledge in the areas of orthopedic disorders, neurologic disorders and musculoskeletal disorders. I have published on such topics as Federal Department of Transportation (DOT) physical examination and medical certification examination, DOT and non-DOT drug testing practice and procedures and DOT and Non-DOT alcohol testing practice and procedures. I have testified on chiropractic medicine, DOT and non-DOT drug testing practice and procedures and DOT and non-DOT alcohol testing practice and procedures.