Also, there is a Clinical test of Acupuncture as a relief for dry mouth that used a double blind. One group got acupuncture needles at true acupuncture sites, the other in false sites, The group that had real acupuncture did significantly better than the second group, thus dispelling the idea that it is only a placebo effect that works for acupuncture. The biggest problem, that I can see, is the small numbers included in most of the scientific tests, but I understand that attempts are being made for more wide scale testing (by MDAnderson [?]).