1. Department of Acupuncture and Moxibustion, Graduate School of Health Sciences, Teikyo Heisei University, Tokyo, Japan.
2. Acupuncture Clinic Sokai, Chiba, Japan.
3. Department of Acupuncture and Moxibustion, Faculty of Health Care, Teikyo Heisei University, Tokyo, Japan.
4. Research Institute of Oriental Medicine, Teikyo Heisei University, Tokyo, Japan.