Dude it was directed at you. I could be wrong but I think klinghardt uses Yu's protocal
Oh, now I see what you were saying. Thank you for the clarification.
It's entirely possible that Dr. Klinghardt uses Dr. Yu's protocol. He didn't acknowledge Dr. Yu in the materials I found, but he may have done so elsewhere or in the past.
I imagine a lot of these practitioners share knowledge and "borrow" from each other, since they're largely having to figure-out this stuff on their own.