Need quick info:Dr Kelley method. Used here? Why/why not?

I need a quick answer or link to the answer. Regarding Dr. Kelly's cancer cure method -- which is certainly not "natural," but which Uny has told us her Mother in-law used to successfully restore her health from liver cancer.

I take it this would not be the best method to use, but the book, "One Answer to Cancer," is worth reading, right? Or wrong? Or is it now totally misleading. How so? What are its shortcomings.

Would Dr. Schulze 's "Save Your Health Manual" be more useful?

Please advise in simple words, for someone who is unfamiliar with these ideas.

Thanks in advance!