Dr. Woodrow W. Gwinn's Dr-Back is made up of 4 Chiropractic Clinics: Maryville Chiropractic Clinic, Madisonville Chiropractic Clinic, Knoxville Chiropractic Clinic North and Knoxville Chiropractic Clinic. Dr. Gwinn and his team of Doctors look forward to guiding you to recovery and good health.