There are a number of studies that have been published. Probably the most efficient one is that of the workers' compensation board in Ontario and, I believe, Manitoba. They have shown that early intervention in a strategy with a pathway outlined, in other words, a specific protocol followed, and review of that on a timely basis as opposed to an ongoing treatment.... Timely and structured evaluation of the patient's condition does return them to work faster at a lower cost. Workmen's compensation has been one of the better ones.
There are a number of other studies. As I said, Dr. Goertz published in Spine in 2013, by looking at the overall costs of medical treatment, and then medical treatment plus chiropractic care, and showed a faster return, and Heymans did, as well, to their working duties, active duty, and expenditures were smaller.