Congratulations to your flush - and to the "turning of thinking".
It is a tremendous Idea to do a study with 50 persons. We all know why such a study has not been done until now: There ist no ROI (return on invest) in financial terms; if you look at the moral side, you have plenty of ROI !
Concerning deep freezing: You have read that deep-freezing destroys the stones. I have deep freezed a lot of stones, but I have NOT done chemical analysis, so I don't now if deep-freezing ist a problem for analysis. But in shape the stones look the same as when I put them into the deep freezer.
Do you know all the scientific papers which write about hepatolithiasis? Medline ist full of it! Although it is still teached, that Gallstones exist only in the gallbladder!
Did you experience any improvement in your health? I bet you did. You would not bee that exited about the liver flush, if you had not!
All the best to you
Elisabeth (a veterinary surgeon, who hat to stop with the profession because of allergies to animal fur)