Reports from Johns Hopkins Hospital doctors document that 40%-80% of patients labeled as soft tissue injury, whiplash, sprain or strain are misdiagnosed. Use of an Internet expert system provides diagnoses with a 96% correlation with diagnoses of former Johns Hopkins Hospital doctors, resulting in a 192% increase in interventional testing, and a 50%-63% increase in surgery in previously misdiagnosed patients, 93% of whom report good to excellent improvement after surgery. .