If an unfortunate side effect should happen to you, well, I am sorry. I am not charging you for
this, you are not paying me for
it, so don’t sue me. It’s a responsibility that you have to assume. If you expect a risk-free life, with massive compensation should things don’t work out, then don't try this.
So, why is this book manuscript free? The physician who reviewed it said, “The materials cost less than $5.