Perhaps while your doing your SCIENTIFIC STUDY you can figure out an explanation for why people get no stones after they are finished flushing them out.
I am also curious as to the motivation behind your study. Is this just something you want to take on or is it being funded?
I will presume if you don't answer this post that no such study exists and that your sole purpose is to distract readers from this site by inducing unfounded fear, a ploy often utilized by Quackwatch. You have heard of them haven't you?