Acupuncture is now used by around 5000 physicians in the US. Early research is demonstrating efficacy in the areas of pain relief in headache and muscoskeletal medicine.
References and Resources:
Böwing G, Zhou J, Endres HG, Coeytaux RR, Diener HC, Molsberger AF. Differences in Chinese diagnoses for migraine and tension-type headache: an analysis of the German acupuncture trials (GERAC) for headache. Cephalalgia. 2009 Jul 13
Kim MS, Cho YC, Moon JH, Pak SC. A characteristic estimation of bio-signals for electro-acupuncture stimulations in human subjects. Am J Chin Med. 2009;37(3):505-17.