1. School of Dentistry, Medical University Graz, Mozartgasse 12/1, 8010 Graz, Austria
2. School of Medicine, Johns Hopkins University, 3400 N Charles Street, Baltimore, MD 21218, USA
3. Center for Kampo Medicine, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan