As has been brought up here before, hair tissue mineral analysis is not a standardized process. Some labs produce more reliable results than others. Even if another good quality lab were chosen, I dont know how comfortable Christine would be working with their results. I have said before that my MD refuses to accept thyroid tests from my local hospital, but makes me drive an hour and a half to get the test done at the hospital where she works. I do not think it unreasonable that Christine wants to use that lab with which is accustomed to work to carry out her study. What indication do you have that Christine has any financial interest in the lab that she employs?