With a deep and broad historic perspective, Arya Nielsen has enormously enriched my associations with Gua Sha, which…I had learned from my own Chinese teacher as a remarkable and often miraculous intervention for afflictions resistant to the ministrations of biomedical technologies in which I was originally trained. …Through Dr. Nielsen’s erudite discussion of the San Jiao, my appreciation of this invaluable therapeutic tool has been profoundly enhanced in the context of the most fundamental aspects of Chinese Medicine.

Leon Hammer, MD

Author, Dragon Rises, Red Bird Flies, Psychology and Chinese Medicine