1. Department of Health Sciences, Kristiania University College, Oslo, Norway.
2. Clinical Medicine Division, Korea Institute of Oriental Medicine, Daejeon, Republic of South Korea.
3. Department of Community Medicine, Faculty of Medicine, National Research Centre in Complementary and Alternative Medicine, UiT The Arctic University of Norway, Tromso, Norway.
4. Korean Medicine Clinical Trial Center, Korean Medicine Hospital, Kyung Hee University, Seoul, Republic of Korea.