2. What do you mean by "best practice" and "research proven"?

Research proven treatments are those treatments which have been evaluated scientifically and found to be effective. Typically, a treatment has to be shown to be effective under several repeated experimental trials before it can be considered research proven - it's not enough to show that it works only one time. 

Best practice standards are the guidelines that ethical clinical professionals follow when deciding which treatment to use in a given case. Generally speaking, this involves using the approach that is research proven for the type of case the professional is dealing with. However, there are also clinical situations for which there is not sufficient research. In these situations the professional must understand what the accepted practice standards are and base his or her treatment on those standards.