chiro presentation on higher cost of PMR directed care

had a hospital meeting , there was a presentation on spine care, and presented by chiro, basically slide after slide indicating chiro treatment in the acute care phase for low back pain is superior, and PMR physician directed care is more expensive, I need some ammunition to refute that claim, I am just aware of Andy Haig's study that supports PMR getting involved early on with spine related pain, are there other studies or resources I can use to help me with a presentation.
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Source Type: forums