I again watched the youtube of Dr. Berkson's lecture at USC re: LDN. Dr. Berkson claims to have had his best results with LDN for RA and Lupus. If interested just google Dr. Burk Berkson and you'll find his sites and also the youtube. Listening to the youtube presentation is quite informative re: RA.
I would sure look at this and even talk to Dr. Berkson re: LDN for RA and other autoimmune diseases. He may take consultation calls.