I know of an excellent NP doctor. He is certainly no quack, this one is an MD who many years ago "converted" to natural healing and if I wasn't one of his patients, I wouldn't believe some of the cures he has done naturally.
I moved away some 15 years ago and have not seen him since then, but if you have questions, call his office is and ask - I'm sure you'll find that he is an outstanding resource for whatever info you seek - he is in Michigan but it won't matter if you're not.
Links don't work in this forum so just google: dr james perkins farmington hills - he's the top link.
So you know you have the right place, their address is:
Alternative Health Solutions
Maple Park Office Center
6018 W. Maple Road, Suite 888
W. Bloomfield, MI 48322